Some people I know swear by SRAM but I must agree with sparzjensen, I wasn’t a big fan of the dual thumbshifters. I too have big hands and kept accidentally downshifting while riding due to the placement and sensitivity of the thumbshifter levers. Now I am back to good old shimanos which do the trick for me. One feature I did like about the SRAM shifters is the ability to downshift quickly through all 9 gears with one thumb push, but how often do I need such drastic shifting? Not often enough.