http://www.break.com/longtail-...some-long-balls.htmlI know that Guerrero is someone that may be an example, although he lacks plate discipline.
If you can slow these down they may show a high shoulder at finish. I see Guerrero's chin on his shoulder at finish in one of these, but I can't slow it down.
It looks like Ryan Howard keeps his shoulder high during the load.
Pujols may be a better example.
And it is a feel thing, elevating slightly the front shoulder does not mean that the body is upright. But the shoulder is to remain elevated during loading. That is the key cue, keep the front shoulder slightly elevated while loading.
After that... Well he finishes high... But in between...