I now have 2 10.5's and they make a loud and effective stack even with a 5 string. I have used the 10.5 with a self build 1x15 cab which adds some depth and warmth, but weighs more and is not as efficient in my opinion.
I recenetly tried a tolex covered aguilar 1x12 cab which sounded great again had some more warmth, but that was not in a live set up so hard to judge.
For anything related to customising basses. Tuners, Bridges, Pickups