I have an existing 2006 MXZ Adrenaline 500 SS with 6500 miles (WI/MI riding). Im 59 and I just cant take the original REV GEN-1 sit position where your knees are bent like pretzels. I had a chance to ride a 2016 Renegade Adrenaline ACE 900 (RAS/rMotion) and a 2019 Renegade Adrenaline ACE 900 (RAS3/rMotion). The 2019 (RAS3) was much noticeably smoother on the front end in the fast bumps. These sleds were lightyears better than my old one. I am looking for a sled that will last another 15 years. I am thinking of an Renegade Enduro with the ACS (rear Air suspension) - a 2022 or 2023 with RASX and rMotion X. Does anyone have any good experience on the ASC rear suspension in regards to trail comfort compared to a normal HPG rear shock Renegade in the bumps? Some reviews say its a high mileage all-day sled in regards to comfort. Is the Enduro worth the extra $2500?