You should go ahead and change it just so you go thru the process. You'll never learn anything by listening to a bunch of opinions on the internet, you actually have to run the test yourself and see what happens. In your case you'll never notice the difference but you shouldn't take my word for it, do the test and see for yourself and then you'll know.
This is the best advise yet. You really don't know what difference if any advancing that camshaft 2 degrees will make, and you will never find out if you don't try. What's a worst thing that could happen? A minor change in the torque curve and shifting at a few hundred rpms earlier?
My opinion (which isn't worth the ink used to create this post) is it won't make a noticeable difference, and if it does, it'll be favorable. It might result in a little more torque in the mid range, make the engine a tenee wenee bit snappier with no noticeable loss up top. Just do it and be glad you did it because YOU wanted to do it. No worries. Best of luck.
