I've got one of the MOD 757's. Have had a few problems with it. Mainly the cut. Trying to find the right type of blade. They made a in between blade that is suppose to mulch and or discharge. I've put 300 hours on mine this season. Currently getting a new Kaw engine put on because the engine had a compression problem. At this point, we don't think it is a JD problem. It is under warranty. I've broke two rods that opens the side chute. Dealer is ordering me another and I will do some welding on it to make it stronger. Currently I have as set of MEG-MO blades which works pretty well with this system. The MOD is a nice feature. The only time i have difficulty opening and closing the chutes are when there is alot of grass build up. Since my mower has been in the shop, it has given me a chance to demo a couple of mowers. I demoed the DC 2503 and the exmark xs 60. The exmark xs is the baddest mower I've ever been on. Enough said.