Thank you for the responses!
Its between GMoney who may have a FluPIC with the higher boost mode or Bogus1 who will have the newer ones.
My two-stage aleph is already driven at 1A and using a 60ohm resister for the low mode. It seems happy at that level, but I never run it at maximum for more than 5 minutes or so. I was thinking the FluPIC's 1.2A burst mode might safely squeeze out a few more lumens.
I may drop the Aleph upgrade ideas if I get more details on Bogus's TNC builds.
I've had the Aleph with me everyday for almost 2 years now and it may be time to retire it.