Actually, I think I have, but it was when I first found out about competitive Brawl. My Marth was doing horribly against the CPU's, which I had never had trouble with before. But, I eventually came out of the slump by never giving up, and experimenting with new things. But why? Do you feel like you're in a slump?
Thanks for the compliment ^__^. Well, if you want to improve your playstyle... Try learning all the MU's as much you can. Also, try to find what fits you personally. I know Toon Link is a great character, with a bunch of different ways to use him. Try experimenting with those other ways, and maybe incoporate some of the things into your playstyle. I also think you should practice some technical things, like tech chasing, and learning how to utilize the technicalities of your character. Also another way to improve is to improve your mindgame skills, but that comes with playing people better than you.
That's what I think anyway. I hope it helps ^__^.
