suspension for trail wheelers, solid for racers. As long as your belts are properly tightened, you'll stay glued to the seat, basically being one with it, moving with it, and letting the seat take the hit. In a suspension seat, when you compress the seat, the belts become loose, and make compressing your back much easier, and in most cases, make the compression worse.
On another note, @RDK_YJ88 , I was looking at the sparco evoII seats, and saw that the evo line is basically sized according to the series. How tall are you, and how much do you weigh? I'm trying to decide if the evoII will fit me comfortably for my next build. Hoping to get a rig built for the RBOR series and technical wheeling.
I have evoII with the UPR seat pads in them. If you guys want to sit in them for sizing let me know