Hi GrantA...
This shock is suitable for the MC28 and MC21 model...
No, this shock isn't adjustable in hight but it can be done if you buy from Technoflex a part that cost around 30 GBP...
This shock comes with a high and low speed compression damping. Rebound damping and spring pre-load adjust...The reservoir is connected with a steel hose wrapped in a carbon cover...
Cheers
michael