I bought a Ferris is 3000 60in kawi last summer(amazing) I have 2 questions about it though. I've got 170 hours on it so far. 1)I haven't messed with the suspension yet. Has anyone adjusted it and how much I weigh 160 pounds an mow larger yards with many bumps. 2) Has anyone else had a problem with the seat? When i stop short, turn hard or hit bumps I take enough weight off the seat to engage the emergency stop briefly, it's driving me nuts.