It joins an O10 and a T39 (my first and second builds). I don't know if I had the skills to start with DR250, but man if I had, I might never have built the T39. I might have built a 2nd DR250 instead. Don't get me wrong, the T39 is great too...but I am just astounded at how good this cab is on its own. I can't imagine any gig that two of them couldn't handle...but that's probably also true of the DR250+T39 combo.
So far, I've tried it with a mid 70's Fender Precision, and with a G&L ASAT bass. The P bass sounds just like it should. But the ASAT is even more of a tone monster with this cab. Man, you really hear the differences in settings and definition in the tone.
Not up to the highest (the BFM/Crooks/Ard/Gavin/Perry/Harley...should I go on?) standards of construction or aesthetics. But it's sound and doesn't rattle, and that seems pretty good for a guy who'd never even picked up a circular saw or soldering iron before his first BFMD cab.
Thanks for all the help, guys. And Bill, thanks for a great design, and manifold patience!
Oh! If forgot to mention. The whole thing with 2510 driver, crossover and eveything, weighs in at 44 lbs! This is just the standard build...not the 3/8" light build. My back would like to thank Mr. FM for that as well!
It took me a very long time, but listening to it--it's really worth it. 
