They are both coupled. The x10 is a rising rate 2way coupled and the x12 is a falling rate 2way coupled. There is a difference between the 2. Big difference. My Brothers '96 700 has the x10. The other 2 sleds have the x12.
I like the pro-action. My XTC has a great ride and does everything predictably. Fast, slow, corners, hills. It's a barrel of fun.
I'd try to stuff the proaction into the '94. If you have a '96 available to take a look at it might help. or the M10. Your limited on the Pogo's really. I remember how badly they took bumps on my '88 Exciter.