ive never run doubles before but ive read on this site that alot people do so figured id give it a try. i was reading either on this site or a site simialr to this one that someone recommened running high lifts with gators. so today i got a new pair of gaotrs and mounted them up with my high lifts. now i only used them at my own house to make a practice run and it cut well, but seemed like it robbed alot of hp from the engine, when i hit the clutch to turn on the blades, i thought the mower was gonna stall, lol. also seemed like it make the mower vibrate too much. so i took them off and just left the gators on for now. i was ruinning them on a 48" ferris dual drive hyro, with a 14hp kawi. think using a set of new blades with older ones had something to do with it?