I just spent some days in Bozen/Suedtirol where i rode some longer (~850hm), steep, and rough downhill trails with my reign 2. The Monarch RT DebonAir works really fine, i had no problems like heating etc aand was very pleased with the way the shock works. The shock works great with the frame/shock design, offers a lot of traction, isnt too harsh when bottoming out and gives a pleasant support for pushing and jumping off smaller objects. All in all the ride is supple and allows you to ride actively. I guess a Cane Creek DB Air or another bigger shock would work a bit better, but the higher price would not justify the small upgrade in performance (in my opinion).