I installed my loop just today with the pro mount, tightened it as far as it would go. Computer turned on and is working perfectly first try.

At idle, I am getting ~20C on both cores of my E6750 at 3.4GHz (340x8) with 1.51v and C1E and EIST disabled. Not using any nozzle, but I did seal the gap and I am using the liquid metal thermal paste.