Well, i like my single cam MOAB and can't say about the duals (have an older style compound with 2 round cams, but don't know whether it is a "dual") When i was choosing my bow i've tried a Firecat but back then i couldn't handle it. May be now when i have a little more experience i'll like the hybrid cams better.
2008 Martin MOAB - 45-60#, set at about 51-53# / 55#" Perfect Line" compound/ 55# Mongol horsebow/ 45# "Perfect Line" takedown recurve/ 45# Bearpaw Grizzly hunter recurve/ 55# Samick Longbow Cheetah ... and several homemade bows