Re: Mp3 format woes.
Actually, no need. I was being a dolt. The playback for wav I was using had equalization applied, and sounded fuller. When I was playing back mp3, it was played from a different program that did not have the equalization applied. Made me think things were a lot worse than they actually were in the loss-of-bass department.
The link above is valid for the 192 version of the export... You'll probably hear what I'm talking about, kinda hollow; but now I'm more thinking I just need to go back to the DAW and mix a bit differently. There are also missing parts and tracks still to go in, so that will help with the "fullness" in the end product for sure.