Has anyone done any tweaking to BFGMiner or those cgminer forks regarding bitfury? I've tried both Anajavis's fork of cgminer, which gives about 10-20% lower speed vs. chainminer and KNK's fork, which doesn't work for me (randomly finds maybe 1 or 2 chips or segfaults).

With chainminer/stratum proxy i get ~160GH/s (5 hcards, hand tweaked best.cnf)

I also tried latest BFGMiner from github, which initially gives same speed as Anajavi's cgminer, but after tweaking some parameters i can get to about 5-1% distance from chainminer's speeds (at least if the pool speed indication is to be trusted). BFGMiner states 166/150/138 with latest tweaks.

The tweaks i made are:
- limit the maximum chip speed to 56 as only few of my chips can handle even that speed
- changed the starting speed from 50 to 54 and now tried 47 (to help the few weak chips limp along...). 54 seemed to produce best results

I had a look at the BFGMiner's bitfury code and at a quick glance it feels that the autotuning is making the speed go up and down too much maybe? Same is with chainminer, i suppose... is there a way to feed your own static chip speeds, as in best.cnf to BFGMiner?