Yard-Ape, thanks for your first post. I hope you post more. This topic is as controversial as politics....which is good. When I used our 2 John Deere 445's for mowing (personal lawn), we had to keep replacing the safety seat switch cuz they kept burning out, and the mower would not operate. Then we began using these 445's for spreading fert only on customers' lawns. (3-point hitch w/electric spreader). Within a week, we 'ROLLED' one of the John Deeres! The safety switch went bad, lost power going up a hill, heavy damage on the machine, leg & back injuries to my employee. So much for safety switches being "safe"! After determining the saftey switches to be UNSAFE, we decided to use these JD's only for spreading dry fert & pulling tow-behind aerators, so we installed "U-shaped" wires to bypass the safety switch ---- main reasons: 1) If the tractor shuts off, we have no control whatsoever, 2) Without a mower deck underneath, there is no saftey issue. My new JD zero-turn still has the safety switch, and I feel safer, but I get p$ssed when I have to get off the machine to pick up "other people's" trash or tree limbs. Safety switches are a good idea (especialy if you're mowing), but when they shell out, I hope it's on flat ground - otherwise, you could be taking a risk.