I'm running a script that cycles through different algos on YAAMP so that in theory the pool gets me to mine the most profitable using  "-p x11,x13,x14,x15,quark,lyra2"  to tell the pool what I can do
earlier today I was getting lots of rejects on quark, sometimes down to 10% accept rate main reason was "job not found", now its much better, 90% accept and higher,  the rejects are "duplicate share" so I assume the earlier problem was not down to my miner but more a fault of the pool/network that has been fixed.
 The only other algos YAAMP wanted me to mine were X13 and X14 the others were skipped, I get less rejects with those.
Now it still disconnects with stratum_recv_line failed every so often on quark ,5-30 mins range, skips all the other algos and goes right back to quark. I might as well just run quark only to get rid of the delays induced by failing the others.