Thought I would post some of my findings here.

Have been using EWBF miner for some time, using 4x EVGA 1070Ti's.
Settings are 63% power limit, gpu +200, mem +700, fans on 50%.
With EWBF and the --fee 0.1 option on Zclassic, I get around 2030 Sol/s.
Temps are around 55C.

Same settings on DSTM,  2071 Sol/s, which is around 4.6 Sol/W

Same settings on Bminer, 2140 Sol/s. So this is indeed the fastest.

However, I get an error after about an hour of mining (sometimes shorter, other times it takes longer).
It says:
Get error: The semaphore timeout period has expired, resseting in 5 seconds.
Connection failed due to External host closed the connection

It then reconnects and starts mining again, however the results are not accepted and accepted shares stay the same.


This has happened a few times now, so I reverted back to DSTM.

Any ideas on this? Error from my side, does it have something to do with the pool (miningspeed), or is it a Bminer issue (as it doesn't happen with DSTM or EWBF)?