The X45 and the AC5 stick have a little attachment that goes on the pinky trigger of the flight stick that makes it easier to use for those with small hands, like kids. It comes off really easily and does not damage the stick in the process, uses only two little holes IIRC. I do not have a n X45, I still have my old school X36, love it. As for that seat, reminds me of those panels that Thrustmaster offered back in the day that would bolt onto your armed office chair, those were very nice.