I've been stuck on HS/PE5 for a while. Not really a big surprise as my thoracic extension is really limited and probably very weak. However, I keep wondering about the course notes for this movement: "Experiencing dramatic cramps in the traps is common."
When I read that I remember thinking, "oh boy, that's gonna be me," but I've actually never experienced cramping in the months that I have been working on this. I use 5-6lbs and really lift into my maximal contraction. Is it just a case of different bodies experiencing different things, or am I not activating the right muscle groups? As a point of reference I really work on elevating the shoulders and keeping the hands shoulder width apart before the lift.