I have the same setup, it is really a great thrower. Quality is very good too. Review at CPF have the MPP-1 around 50k lux. I keep wanting to get a new thrower, but can never find one that will out-throw the MPP-1 for less than $75 or so.
They ship from China, but usually there shipping times are faster than places like DD, DX, etc.
I decided that I didn't need another thrower or a single 18650 light of that size. I decided on a Shiningbeam Caveman. Not that I don't have lights that size, shape and battery configuration, it's just I wanted one that has an XM-L. I also ordered two more TF Flame 18650 batteries.
I did get the batteries from Shiningbeam also. I know I can get them cheaper but he sells the TF Flame 18650 for $7.49 before the 6% discount and them will be here this week along with the light.
I just went ahead and ordered a couple anyway and I will give them a try. I'm hoping they don't take too long because of the Chinese new year. Not sure when that starts but I have heard that it slows everything way down.