I did try that Cain, but it felt too long and not boxy enough.
It does beat using the Classic Controller at any rate though. Made Mario 3 a lot more playable.

What I find somewhat amusing is that the classic controller seemed best for SNES games and yet I prefer to use the Super Famicom controller plugin as it's exactly like the older SNES controllers I know and love.

CP:
Chrono Trigger DS
New Super Mario Bros.