My L3200 & L4060 ran/run my 5' KK tiller pretty well. I'd prefer a 6' to match my 6' tack on the L4060, but havent upgraded the tiller after upgrading the tractor. Some of it will come down to how hard your ground is & if you have a HST or not. A geared machine may not go slow enough if you are a bit short on power. Both my machines are/were HST.