I really like my GP Extra. I put the OS 1.20 in it and to me it seems the perfect powerplant. Unlimited vertical and excellent downline braking. If you have that 91 2-cycle I would definatly go with the GP kit. It is a little smaller and will take to that size engine a little better. You really cant go wrong with either choice but I really like how the GP kit looks when compared to that of the CG.

Good Luck, Phil (Mesa, AZ)