I have a medium. They tend to be great for singletrack, but because you can’t get a short stem, the steering a a bit slow. Its crap on fast flowy downhills that throw in the odd tech bit”s”. Now I’m talking about a 2004 model that I rebuilt with a 140 lefty. It’s a fab bike and I love it, but she is only out In the summer cos leftys are shite in wet weather and water ingress is really a pain to prevent.
The weird trunnion shock is one of the most compliant and tuneable I have ever used, but if it leaks again I’m screwed cos they don’t do spares for them ( manitou version). The fox shock is rebuildable though. TBH, if you want a cannondale, check the forums in the states first as they can be a bit marmite and parts availability can be a pain for older bikes ( over 5 years).