I switched to Gentoo linux after using YellowDog. It was much more difficult to install. I spent 3 times as much time during the install. Gentoo did not come with all the software I had in YellowDog, VLC, ps3 shutdown, firefox. I had to install everything again, which took me a long time.

It does seem faster and more stable, so I am sticking with it and KDE.