I Have recently purchased a new Deere 915B 54 deck mower. It has the Kohler 27(23.9) engIne and I am pretty happy with it. Although the power is more than enough for what I do with it, the ride is very harsh on my newly planted yard. The yard is 2 acres sloped and has quite a few washouts and less than desireable terrain. ( I will be getting more dozen work and repair in the next few weeks). I wish I had gotten a suspension seat as soon as I hit the first rough patch! I have looked at the usual add on seat package such as the low profile add on like the one Deere sells that installs between the seat pan and seat, and another eBay offering http://www.ebay.com/itm/SEAT-SUSPEN...299?pt=LH_DefaultDomain_0&hash=item3cc3e93cab . Have any of you installed a system like this? If so what did you think? The eBay seat looks more like the milsco (Michigan seat) setup. I guess all I am asking is what can I do to improve my ride on the mower and do at a cost prohibitive point. Thanks!