I don't think someone can dispute the benefits of a 3" on a straight open climb.
The older I get, the more I like to spend my time in the rhubarb. My question is, how is the 3" in the jungle. You know your in the tight trees. You have no run, you come around a tree(s) and you need to jam the throttle and go hard left and up. You have been there.. It can be sktetchy. If you haven't, you should try it, it's a good time.
That's where I want just a tick more help. I fall short in that situation once in a while. When you get in that tree sugar it gets a little hairy.