Lol flashing the BIOS is 100% safe. if you f it up just boot from USB stick with another card for main adapter and flash it back. Happened to to me a few times^^ I flash em all the time when ive got a new idea... I'll check what mems my 6x 280x miner has next time I visit it...

amorphia: intensity 18 for neo sounds high. I get highest performance with 13. Interesting using different work sizes. I'll try that^^

jimlite: how much boost can u expect from stilt with neo?

I'm squeezing my way over 300KH/s with a kernal compied on win8.1 and 14.4 drivers with a engine of 1150 MHz. VDDC 1225. (mem 1500). What happens if your raise the vddc on that sapphire by modding its bios instead of setting it by software?

Neoscrypt seems to have a normalization multiplier of 0.32. But I can only get 130kH/s out of my massivly undervolted 7970 (core 880MHz, mem 750MHz). Am I missing something? I cant find anyone else with a better result either. Nicehash uses a multiplier 0.15 that seems more consistent with my hashrate...

edit: found the new kernal. Now my 280x:s are making over 300KH/s^^