Thanks all for the help Kukus, vetevana, noburesu. Great to share thoughts with you, much easier for a beginner on GPU clocking to get some ideas from to trim everything. Ill continue to share my findings with you if I come up to something.
You are welcome. You can also try to mod in BIOS (TDC and Max power limit) in this case. Most cards have TDC about 110-115A and Power limit at 115-125, while as I noted, your ASUS cards have about 85 and 95 settings there respectively.
As to me, I prefer to use miner settings in Claymore to change it. I guess 27Mh/s is good for ASUS, i never reach over 27,5 with them