Yeah. That is exactly the problem when shopping for these things. I think there is a lot more to it. Probably differences in metal gears or plastic gears. Maybe it is a difference between Peak hp and continuous hp. I've found with items like these, you just can't rely on the specs.
Proudly Smoking on a UDS, PBC &
Accidental Winner of the 2012 "Saucy" Throwdown.