I have also contemplated buying a new seat. I do struggle to put both feet completely on the ground with a 29" inseam.
I don't believe the seat is too high as such, but I do find the front half of the seat is too wide which forces your legs more outwards which in turn makes the ground further away.
I believe Honda has done this to make removing the side covers much easier.
I do like the current seat to footage height and find it quite comfortable.

Could people who already have bothMustang or the Ultimate seat comment if their seat is wider, narrower or the same width as the stock seat. even a few dimensions or photos showing the difference would be great if not too much of a hassle.
May also help Cosborn on his seat choice.

Cheers