I have been on a very high 2D20 Conan Kick since the kickstarter was announced. After playing many many hours of it. I have learned that this game has so many intricate details that if you try and changed something, it effects something else. (Balance wise)
The good thing is, with this game I have yet to even consider changing it or adapting it. Its a great system! I love Conan, I love 2d20, and I love DOOM!!!