My thought process was "grumble grumble I can dingle arm a hammer"...yeah I can. I filmed it, elephant walk, all good. Go to swing it on stomach/chest high plane, examine footage...collapsed upper arm, shoulder up. Yup.
Ok so with SW's marked up image of shoulder past hip I managed to feel how to get my shoulder forward more, it is probably like a 2-3" difference so far but it feels better. In the battering ram I could feel it on the Feldy angle but not very much on the higher angles before. With the shoulder forward I can leverage the battering ram way better at high arm slots.
So here's the hammer with the shoulder more forward. It feels different than leverage I get on a baseball bat with 2 hands, it feels slower/more drawn out but like there will be momentum. It's impossible to get to this same spot with 2 hands like a golf club or baseball bat, so it's a different feeling than anything I'd done. But I definitely don't feel T-rex arms like on some throws today when trying to keep the arm down.
It looks much better and is definitely not what I have been doing.
Problems?
https://vimeo.com/291042089
https://vimeo.com/291042089^^^^^^DELETE THE ^^^^^ FOR BIGGER VIDEO