G&W on small stage i feel is a double edged sword, he has multiple moves that allow him to get early stocks some of which are F-Air, N-Air, Judgement numbers 4,6,7,9, and his F and D Tilt, but due to him being one of the lightest character he can get combo'd and killed just as easily and his recovery is hindered aswell since its near impossible to sweet spot the ledge on some of the smaller stages (Ex: Melee Yoshis). I feel its appropriate to go to smaller stages with G&W if you feel confident with your combo and punish game and/or you feel the match up is in your favor.