Just watched this video. Love all your videos BTW! Just thought I would let you know I have a Kona Process 143 (aluminum frame) and I LOVE it! Not as fancy as the one you are considering but it gets the job done for me and was in my budget. It is heavy and I get a work out climbing but I am ok with sacrificing some of that to have fun on the DH. It makes me feel so confident especially descending and is so fun going downhill. I have been riding about two years and still working on getting faster and more confident like you are. As for sizing on the Kona, I ride a medium and I am 5’8” and 145 lbs. I was riding my husband’s old Specialized Stumpjumper size L before I got my Kona and it fit me similarly but the geometry was way different since it was super old! Happy Bike shopping!! Looking forward to seeing what you get.