@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.
Did you experience significantly lower temperature and/or lower power consumption? I never used low intensity mode and can't test my rigs now with "-li 1" parameter.
Well well well Mr claymore hash rate calculations. The pool reports a drop of 20% while the miner reports the same hash rate. It makes me wonder....... How can that be possible claymore? The hash rate the miner shows is made up?