I think your right about the right arm it collapses in sometimes not aure about the double anchor though usually i use right anchor except in this pitch double anchor.Don't think I've ever posted a pitch shot or driver swing video so here they are. I hit the ball really far MOI darkside 455 6.5* driver with accuflex 55g xx 47.5" essentially a long drice driver but I use it as my standard driver usually swing fairly controlled with it but have the extra gear when I want it. I do the pump extensor motion to feel the extensor and maintain soft arms before start up for every shot its a really good waggle type thing to check extensor