hi. yes, i put on the x-series suspension with those big springs. The seat itself goes back just as far, no problem at all. It does sit higher up, vertically, than the other seat because of the suspension being in place between the body of the tractor and the seat base. New holes had to be drilled but it was not very difficult. As to the angle of the seat, on the front part of the seat itself, underneath, there is a frame with several holes in it. A bar runs horizonitally through those holes and is attached with a pin. You can pull the pins, pull out the bar, and insert it into different holes on the seat frame. The end result is that the front of the seat base tilts further down, or further up, depending on what you want. I have short legs, so I needed to seat base to tilt down a bit. You will have no problem at all with long legs. The x-series seat, being high backed, is also more comfortable for me and it does not interfer, in any way, with turning around to see what is going on with rear implements. Hope this helps. If you want, I can take some photos of the conversion and post here.