Yep, the concave surfaces of the V1's is what hampered their performance. Not to mention the contact base of it doesn't cover the whole IHS (for AMD's). Centering it can be somewhat tedious. Not that it even needs to be,but, I just like coolers that cover it completely.
I was very disappointed with the V1's. I really like the look of it. Too bad it's performance was rather lackluster. I might get a refurb, if the price is right, and lap it.
However, the retention mechanism on the V1 for AMD is pretty crappy. That large clip they give you to hold it down really sucks and it's super flimsy.
Are you using the stock retention mechanism?
Good thing though is it's easier to get in place than the Arctic Freezer Pro cooler I have - I cringed everytime I ever had to remove and install it. The retention is also NOT actually attached to the cooler so be aware of that since this does account for alot of the moving around it does.
Edited by Kryton - 8/16/10 at 8:39pm