diff --git a/iguana/iguana777.h b/iguana/iguana777.h
index 66ea29680..54397f82c 100755
--- a/iguana/iguana777.h
+++ b/iguana/iguana777.h
@@ -485,9 +485,9 @@ struct iguana_info
     //portable_mutex_t scripts_mutex[2]; FILE *scriptsfp[2]; void *scriptsptr[2]; long scriptsfilesize[2];
     //struct scriptinfo *scriptstable[2];
     struct iguana_bundle *bundles[IGUANA_MAXBUNDLES],*current,*lastpending;
-    struct iguana_ramchain RTramchain; struct OS_memspace RTmem,RThashmem;
+    struct iguana_ramchain RTramchain; struct OS_memspace RTmem,RThashmem; bits256 RThash1;
     int32_t numremain,numpendings,zcount,recvcount,bcount,pcount,lastbundle,numsaved,pendbalances,numverified;
-    uint32_t recvtime,hdrstime,backstoptime,lastbundletime,numreqsent,numbundlesQ,lastbundleitime,lastdisp,RTgenesis,RTstarti,idletime,stucktime,stuckmonitor,maxstuck,lastreqtime;
+    uint32_t recvtime,hdrstime,backstoptime,lastbundletime,numreqsent,numbundlesQ,lastbundleitime,lastdisp,RTgenesis,RTstarti,idletime,stucktime,stuckmonitor,maxstuck,lastreqtime,RThdrstime;
     double backstopmillis; bits256 backstophash2; int64_t spaceused;
     int32_t initialheight,mapflags,minconfirms,numrecv,bindsock,isRT,backstop,blocksrecv,merging,polltimeout,numreqtxids,allhashes; bits256 reqtxids[64];
     void *launched,*started;
diff --git a/iguana/iguana_recv.c b/iguana/iguana_recv.c
index 1c99c170b..27fdcea5e 100755
--- a/iguana/iguana_recv.c
+++ b/iguana/iguana_recv.c
@@ -448,7 +448,7 @@ void iguana_gottxidsM(struct iguana_info *coin,struct iguana_peer *addr,bits256
 
 void iguana_gotheadersM(struct iguana_info *coin,struct iguana_peer *addr,struct iguana_block *blocks,int32_t n)
 {
-    struct iguana_bundlereq *req;
+    struct iguana_bundlereq *req; int32_t i,num;
     if ( addr != 0 )
     {
         static uint32_t hdrsreceived[IGUANA_MAXPEERS];
@@ -465,6 +465,13 @@ void iguana_gotheadersM(struct iguana_info *coin,struct iguana_peer *addr,struct
         if ( addr->pendhdrs > 0 )
             addr->pendhdrs--;
         //printf("%s blocks[%d] ht.%d gotheaders pend.%d %.0f\n",addr->ipaddr,n,blocks[0].height,addr->pendhdrs,milliseconds());
+        if ( bits256_cmp(blocks[1].RO.hash2,coin->RThash1) == 0 )
+        {
+            num = (n < coin->chain->bundlesize ? n : coin->chain->bundlesize);
+            for (i=0; i<num; i++)
+                addr->RThashes[i] = blocks[i].RO.hash2;
+            addr->numRThashes = num;
+        }
     }
     req = iguana_bundlereq(coin,addr,'H',0);
     req->blocks = blocks, req->n = n;
@@ -475,18 +482,24 @@ void iguana_gotheadersM(struct iguana_info *coin,struct iguana_peer *addr,struct
 
 void iguana_gotblockhashesM(struct iguana_info *coin,struct iguana_peer *addr,bits256 *blockhashes,int32_t n)
 {
-    struct iguana_bundlereq *req;
+    struct iguana_bundlereq *req; int32_t num;
     if ( addr != 0 )
     {
         addr->recvhdrs++;
         if ( addr->pendhdrs > 0 )
             addr->pendhdrs--;
+        if ( bits256_cmp(blockhashes[1],coin->RThash1) == 0 )
+        {
+            num = (n < coin->chain->bundlesize ? n : coin->chain->bundlesize);
+            memcpy(addr->RThashes,blockhashes,num * sizeof(*addr->RThashes));
+            addr->numRThashes = num;
+        }
     }
     req = iguana_bundlereq(coin,addr,'S',0);
     req->hashes = blockhashes, req->n = n;
     char str[65];
-    if ( 0 && n > 2 )
-        printf("bundlesQ blockhashes.%s [%d]\n",bits256_str(str,blockhashes[1]),n);
+    if ( 1 && n > 2 && addr != 0 )
+        printf("addr.%d %s [%d]\n",addr->rank,bits256_str(str,blockhashes[1]),n);
     queue_enqueue("recvQ",&coin->recvQ,&req->DL,0);
     if ( n > coin->chain->bundlesize )
         iguana_sendblockreqPT(coin,addr,0,-1,blockhashes[1],0);
@@ -792,7 +805,7 @@ struct iguana_bundlereq *iguana_recvblockhashes(struct iguana_info *coin,struct
     memset(zero.bytes,0,sizeof(zero));
     bp = 0, bundlei = -2;
     iguana_bundlefind(coin,&bp,&bundlei,blockhashes[1]);
-    if ( 0 && num >= coin->chain->bundlesize )
+    if ( 1 && num >= coin->chain->bundlesize )
         printf("blockhashes[%d] %d of %d %s bp.%d[%d]\n",num,bp==0?-1:bp->hdrsi,coin->bundlescount,bits256_str(str,blockhashes[1]),bp==0?-1:bp->bundleheight,bundlei);
     if ( num < 2 )
         return(req);
diff --git a/iguana/iguana_unspents.c b/iguana/iguana_unspents.c
index 3b9301f0c..e19b0e5a1 100755
--- a/iguana/iguana_unspents.c
+++ b/iguana/iguana_unspents.c
@@ -1851,14 +1851,42 @@ void iguana_rdatarestore(struct iguana_ramchain *dest,struct iguana_ramchaindata
     src->H.spendind = rdest->numspends;
 }
 
+void iguana_RThdrs(struct iguana_info *coin,struct iguana_bundle *bp,int32_t numaddrs)
+{
+    int32_t datalen,i; uint8_t serialized[512]; char str[65]; struct iguana_peer *addr;
+    for (i=0; i<numaddrs && i<coin->peers.numranked; i++)
+    {
+        queue_enqueue("hdrsQ",&coin->hdrsQ,queueitem(bits256_str(str,bp->hashes[0])),1);
+        if ( 0 && (addr= coin->peers.ranked[i]) != 0 && (datalen= iguana_gethdrs(coin,serialized,coin->chain->gethdrsmsg,bits256_str(str,bp->hashes[0]))) > 0 )
+        {
+            //printf("UNSTICK HDR.[%d]\n",bp->hdrsi);
+            iguana_send(coin,addr,serialized,datalen);
+            addr->pendhdrs++;
+        }
+    }
+}
+
 int32_t iguana_realtime_update(struct iguana_info *coin)
 {
     double startmillis0; static double totalmillis0; static int32_t num0;
-    struct iguana_bundle *bp; struct iguana_ramchaindata *rdata; int32_t bundlei,i,n,flag=0; bits256 hash2;
+    struct iguana_bundle *bp; struct iguana_ramchaindata *rdata; int32_t bundlei,i,n,flag=0; bits256 hash2; struct iguana_peer *addr;
     struct iguana_block *block=0; struct iguana_blockRO *B; struct iguana_ramchain *dest=0,blockR;
     if ( (bp= coin->current) != 0 && bp->hdrsi == coin->longestchain/coin->chain->bundlesize && bp->hdrsi == coin->balanceswritten && coin->RTheight >= bp->bundleheight && coin->RTheight < bp->bundleheight+bp->n && (coin->RTheight < coin->blocks.hwmchain.height-3 || time(NULL) > bp->lastRT) )//&& coin->blocks.hwmchain.height >= coin->longestchain-1 && coin->RTramchain.H.data->numblocks < bp->n )
     {
+        if ( bits256_cmp(coin->RThash1,bp->hashes[1]) != 0 )
+            coin->RThash1 = bp->hashes[1];
         bp->lastRT = (uint32_t)time(NULL);
+        if ( coin->peers.numranked > 0 && time(NULL) > coin->RThdrstime+10 )
+        {
+            iguana_RThdrs(coin,bp,coin->peers.numranked);
+            coin->RThdrstime = bp->lastRT;
+            for (i=0; i<coin->peers.numranked; i++)
+            {
+                if ( (addr= coin->peers.ranked[i]) != 0 )
+                    printf("%d ",addr->numRThashes);
+            }
+            printf("RTheaders\n");
+        }
         iguana_RTramchainalloc(coin,bp);
         bp->isRT = 1;
         while ( (rdata= coin->RTramchain.H.data) != 0 && coin->RTheight <= coin->blocks.hwmchain.height )
@@ -1878,8 +1906,8 @@ int32_t iguana_realtime_update(struct iguana_info *coin)
                         block = iguana_bundleblock(coin,&hash2,bp,bundlei+i);
                         if ( i == 0 || (bits256_nonz(hash2) != 0 && (block == 0 || block->txvalid == 0)) )
                         {
-                            uint8_t serialized[512]; int32_t len; struct iguana_peer *addr;
-                            char str[65]; printf("RT error [%d:%d] %s %p\n",bp->hdrsi,i,bits256_str(str,hash2),block);
+                            uint8_t serialized[512]; int32_t len;
+                            //char str[65]; printf("RT error [%d:%d] %s %p\n",bp->hdrsi,i,bits256_str(str,hash2),block);
                             addr = coin->peers.ranked[rand() % 8];
                             if ( addr != 0 && (len= iguana_getdata(coin,serialized,MSG_BLOCK,&hash2,1)) > 0 )
                                 iguana_send(coin,addr,serialized,len);