JYD doesn't have the side adjusters that the S60 has.... When you go to set up gear sets you'll truly appreciate the value of those side adjusters of the S60. I have the shim packs for each gear set for my S60 so changing gears doesn't require a whole lot, especially since they are already bolted to a spool. ....and as I said before, if I had it to do again, I'd have a 9" (although that $1700 number thrown out there for a spare gear set is like "WOW!")