Hi! Great question. I think for me it just boils down to logistics. I've never been in the same place as the other yogis you mentioned in order to film together. Annnd to be honest, you would be surprised how....non-inclusive... the yoga business world can be. That's not directed at any of the yogis you mentioned, but when people have worked very hard to build a loyal following, it's not unheard of for them to want to kind of keep it to themselves. This also goes for studios. I have a very, very tough time finding a studio who will allow me to guest teach.