Hi Larry, I shoot skeet on the regular and "compete" in season with a bunch of old farts. Hence the name. All commercial brands out there have gearbox and hydro (i think the only exception might be Wright. I'd prefer the gearbox because its the same transmission in every single one (Peerless) parts shouldn't be an issue. Also Hydro may be superior in every way, but really the added value is only perceived by most commercial operators. I personally am not a fan of Hydro Transmissions, but thats because my only experience with it has been with a crappy L100 series John Deer Tractor. Thing whines like a baby.