@claymore
You should make the -li 1 default. It does have a major impact on temperature and I guess power usage with no meaningful decrease on hashrate. In fact Tahiti and Hawaii have no hashrate decrease at all. Ellesmere shows a decrease of 4 or 5 hashes.
I dont know about it. Tried -li 1 and it does really improve temps while keeping the hashrate the same, but now pool shows much less that before...