I didn't use the Tuniq's own paste, used some 'silver based' compound. I did put a washer on each of the screws because I found it quite easy to move the tower with my finger, it didn't seem to have enough pressure on it.
I lapped the CPU because of uneven temps and thought I'd might as well do the tower while I was at it. (CPU was easy, tower was harder due to the size).
Ok thanks for that info, the tower is very stable with it just screwed in on my motherboard, so it wouldnt be for that, its just ive heard that it can improve performance, so might give it a try, not like washers are expensive or anything! I think im going to get some AS5 and remount it.
Question: How do you take the top fan out of the Antec 900 case? Because if I could do that then it would make it a lot easier to remove and remount the Tuniq without taking the motherboard out.