I am looking for several options for a suspension seat for my Exmark lazer Z and would like the group's opinions. Option 1 http://www.mowerseat.com/Seats.html This site has the Turfglider suspension seat described as: "Our premier seat includes the patent-pending Terrain JockeyTM Suspension System! - Terrain JockeyTM Suspension attenuates low frequency vibration. - Contoured back & seat with side bolsters for extra support. - High resistance foam with Ultra-FreshTM moisture protectant. - Marine-grade vinyl in 2-tone black & grey. - Flip-up arms with polyurethane comfort pads. - Auto-grade hardware & powder coated metal parts. - Delta 6520 n/o double pole seat switch. - Heavy duty, low profile seat sliders. - Standard deck bolt pattern [11" x 11 1/4"]." Cost 324.00 delivered. OPTION 2 The Ultra Low Profile Mechanical Suspension by K&M manufacturing that attaches to your existing seat. Suspension travel on this unit is only 1 inch but, I don't know how that compares with my other options. Also, it raises seat height about 2 inches but, I don't know how that compares to my other options either. http://www.tractorseats.com/Products/Suspension/Susp-PIG/susp-pig.html Cost $157.00 plus shipping. OPTION 3 Northern Tools best suspension seat for mowers is supposed to be like the optional seat that you can get from Exmark for a lot more. Cost $319.00 plus shipping. OPTION 4 Sell my low hour Exmark and get a Ferris. Cost A lot but, my back is worth it. What do you all think??