I gave Zach the model a 3 - average in my grading system.  Solos rarely do anything for me, and this one was no exception.  I thought his still being active in the Army would have his body in more toned shape.  I don't get all ga-ga over redheads but his color of a sort of dark auburn is the type of redhead I prefer.  He has that sort of farm-fresh look.  Hard to make any assessment as to what he will be good at when working with others, but on first blush I'd have to say, I see him more bottom than top.  I like my tops big-dicked and aggressive/dominant and he doesn't give off that persona.  Having said that, many times it is the quiet mild mannered types who are studs in bed; so I'm happy to wait and see.
The scene itself was a 2 at best, fair.  Sha let the opening blather get away from him and we went on to hear a lecture on army training for almost 5 minutes.  That kind of discussion is what should be included in the BTS which is entitle "Getting to Know ..."  The opening blather for a first scene should be about the sexual aspects of a model's life.