QUOTE(GaryinWI @ Nov 6 2006, 08:51 PM)

I had a 96 and a 98 500 Classic Touring with the xtra 12 and now have a 2005 600 Edge Touring with the ACE (electronically adjustable) M1o. The 600 edge rides considerably better than the xtra did but that could be at leats partially due to the ACE. My wife has a 04 550 trail touring with the std long track M-10 and she really likes it even better than the other Classics did. As someone else said, the key to the M-10 is to dial them in for the specific weight of the rider. Most people run their suspensions way too hard. My rule is that if I do not bottom out a couple times during the day, it's too tight. You won't go wrong with an edge...especially the long track touring version.
Gary
Take a look at either the 600 Edge Touring w/ACE (it must be the 50th Anniversary model, I put several thousand miles on mine), or the 04 550 Trail Touring and when you see the upside V of coil over shocks and a Hair or Torsion Spring, as well, you will realize that you do NOT have an M-10 suspension. I mentioned this in an earlier post of mine. The first Polaris factory equipped with a 136" true M-10 are the 2006 IQ Touring sleds. I own one of these too.
The Edge Touring all had the Polaris M-12 hybrid rear suspension with a combination of the M10 torque arm geometry and rear sliding/couplling blocks and the Xtra-12 upside down V coil over shocks with hair springs.
These are very good riding sleds with reasonable handling. The comfort for two adults is outstanding.
GaryinWI,
A good way to check your facts on Polaris sleds is to use the specifications page on
PolarisMan.com