I am also 6’2” so I understand how hard getting the proper form can be. You really gotta crouch down, head over the front fender, and ass straight out when you are tall. Almost want your back parallel with the ground as much as possible. I don’t come close to perfect form, but here are a few pictures of me. Sometimes it even looks like I’m sitting down because I’m so low, but I’m standing with 100% of my weight on my feet. No tall bars or risers on my bike, I think they cause terrible form. I also run them cut down to 30” for tight woods racing. I have never been able to do the whole grip with your knees thing, I’m just too tall. Best advice I have ever got was to let the bike push you through the pegs, not drag you through the arms.