I've been using the same tube of Mx-4 for years now. But it gets more irritating every time I use it as it's so thick and hard to spread thinly. So now I'm looking into trying something different. It looks like liquid metal TIMs offer the best temps but I'm not one to really trust the numbers manufacturers put out. What have your experiences been like when using any of these liquid type TIMs, especially on an AMD FX CPU?