Besides the obvious clearance advantage on the turret while unloading on the go on rough ground, the turret uses 22 hp to operate while the swivel type uses only 14 hp. Swivel has no right angle gearboxes or double flighted auger to damage grain. Now, here is something to ponder - the highest point of clearance of the swivel unloader is exactly the same as the highest point of the turret. So you MIGHT be able to squeeze that swivel unloader over an even higher wagon_trailer than the turret since that downspout on the turret can't be dropped down into the trailer like the swivel can. You can also run the swivel unloader just an inch or two shy of fully extended to gain some precious height out at the end. Be careful though when doing this. We have unloaded into semi trailers that had tarp arches high enough that we had to drop the unloader between them - I doubt we could have done that with the turret. As the Great Bobby Greif says - "Turrets belong on tanks, not combines!"