+3 for Jedi.
You don’t have to be fit, as skillz course is easy fittnes wise. Mental wise, it’s a different story.
Group or 1-2-1 it all depends on you really. I had 1-2-1 though, … I wanted all attention I could get hence the price.
Don’t think Jedi teaches the way for you to come back to him again, he will insert basic skillz into you first, then fine tune via e-mail if you start to struggle in some aspects. Unless if you want to be freeriding god with all tricks, then think one 1-2-1 session will improve your riding big time. Even then, Jedi does teach you -progressive/new generation way- you will notice, MTB will open up like a new world to you. You will be able to answer all your MTB questions in the world, once those skilllz are installed in you.