If your MX is a hydraulic shuttle you have a wet clutch (pack) if it's a mechanical shuttle, you don't (dry clutch). Both my M's are hydraulic shuttle and I've never touched the pedal adjustment in 12 years+ of farming.
I very rarely use the clutch pedal except when starting from a stop or changing main gears. The shuttle lever is about all I ever use and in my case it's all hydraulic actuation via a proportioning valve. Same applies to my clutch pedal. the 'linkage; is all hydraulic, no mechanical. That is the main reason I purchased both with hydraulic shuttles, nothing to wear prematurely. What I do entails directional changes and lots of stop and start cycles. I'd eat up a clutch in no time because my start stop cycles involve round baling and I'm holding the baler at rated pto rpm whether I'm moving or not.