I think you've bracketed the powder burn rate - Titegroup is too fast, and 800X is too slow in my experience with 9mm. I agree with Oberndorf: Alliant Unique or Hodgdon Universal Clays are in the middle of the range you bracketed, and work best in my 9s.
I think the trick is to match the burn speed to the operating speed of your slide. Unique/Universal do that for me.
With Titegroup, there's a hair's difference between the min load to operate the slide, and an overload.
With Unique or Universal, there's a fair gap between min load to cycle and an overload.
With 800x, the rate may be too slow to operate your slide. I don't know - never tried such a slow powder. It's way down at #52 on this rate chart http://www.reloadbench.com/burn.html
This will vary with the particular pistol in question. I'm 100% sure some guns out there will cycle fine with Titegroup or 800x. Mine won't cycle with Hodgdon Titegroup, Clays, or Alliant Bullseye.

Titegroup is a good powder for the 9MM it does have a fast burn rate faster then W231` so i would use Titegroup with 90 or 95 grain Bullet. 800-X can be used but i dont use it in the 9MM due to it's very large flakes which takes up space in the 9MM case.