While working on these I sat on the floor (they're in a very tiny room currently) and was amazed that the bass response is much greater with my head at driver level or below. So I believe that most of my issues are probably in room layout and speaker location. I plan on raising them up a bit when they're complete so this shouldn't be as big of an issue.
They also seem to be gaining in bass response as the days go by, I'm not sure if this is a real phenomenon or if I'm just not listening to the bass heavy Pioneers as much and am getting use to something that is probably a more flat, true speaker.
I also added some extra sealing behind the tweeter and that might have helped a bit, but it could be psychological.
Thanks again for all your help,