2" maple shelf or 3" one:sound different?

Im sure you will get posts that say, sure, bigger shelves sound better. I for one can't imagine it would make any difference...maybe if you have a $50K system. Good luck!

When I replaced the 1 3/4" thick maple platform under my VPI Scout with a 3" thick one, there was an improvement. It was not nearly the order of magnitude of improvement that I got going from no platform to the thinner platform though. My listening room has carpet over a concrete slab floor, so there are no issues with floor vbration. If you've got vibration issues, there might be more improvements with the thicker version.

I forgot to ask which grain though:edge or flat one?