I gave one of my beta test batteries to a friend, and he actually doesn't like it because it's too powerful. He likes a slower experience. When I finished my tests I originally thought MF had pulled off a miracle because I was sure they were LSD batteries. I did a refresh and analyze with my C-9000 and they seemed to be 2400 mAH batteries. Also, MF in the past chose to ship LSD batteries because they have an excellent shelf life. Then I tested an Imedion 2400, a Powerex 2700, and the MF battery by charging them up completely and then letting them sit for two weeks. The MF battery lost much more charge than the Powerex, 445 mAH to 122, so now I believe they are HSD. One thing I did was compare the brightness of my light with a fully charged Powerex 2700 and a fully charged MF battery. The MF battery was noticeably brighter. It clearly delivers more power to the screen. The overall hit count was almost identical with both batteries, but the ABV from the MF battery came out much darker. The extra power is also reflected in the fact that I was finishing trenches in about 15 hits compared to 20 with the 2700.