Several IS 3200 operators on lawnsite have commented about their new machines throwing the deck drive belt and spindle pulleys not tight. Haven't heard what the resolve is as many don't follow up and comment as to how their problem was solved.
I have always admired the suspension on Ferris ZTRs. In 2008 I set out to purchase an IS 2000, the dealer was on vacation, checked out Kubota, wasn't impressed, ended up with a Scag Tiger Cub/collection system. I have since installed an aftermarket suspension seat on the Tiger Cub. My Hustler X-ONE is used in a cemetery, one tough machine and easy to maneuver despite its size and weight, rear discharge machine.