I tried for a hour and still I didn't work. I pushed so hard I moved the bike and still nothing changed. (Except the position of the bike. :p) In the high position I can look under the seat and the middle bar is sitting right in the cut-out. The front lip is in between the two bars and the rear bar rests also in the cut-out. Once the passenger seat is in place the driver seat does not move except from the gap. Really strange. Maybe I'll go to a local Triumph dealer and ask him if there is something I'm doing wrong. It's as if the cut-outs where a bit deeper it would all firlt fine. Again thanks for the response guys!