I've sent two emails to Coollaboratory and they haven't answered (do they ever answer customer/support queries?). In any case, I wanted to find out from them whether the Pro or the Ultra need to be re-applied after a while and if yes, how much is "a while"? Anyone can confirm?

I love fiddling with stuff (already removed the IHS and played with the Ultra) but am not looking forward to doing it on a constant basis or risking my CPU overheating to death because the TIM went.