jon,
disregard my response on your other thread; you basically just addressed my same question. to answer your questions, I am playing at quite a high level of tennis (5.5-ish) and i'm preparing myself for playing div. 1 college tennis in the fall. like most juniors at my level i have had a good amount of formal coaching to develop solid technique and strokes from the get-go. i totally undestand what you mean, and after reading your thoughts and discussing with others, im not afraid of the developing arm problems with a full poly. i know this kind of set-up will be what i am looking for and rather than trying to find a tension that will allow me to take my normal stroke and place the ball where i want deep in the court. my current set-up of pro hurricane tour 17 mains at 56 and wilson super spin 16 crosses at 58 feels good, but its forcing me to alter my grip and thus stroke to get the correct depth/speed. if i was going to hybrid again i would probably drop each tension by 2 pounds to allow me to take the swing and stroke im comfortable with using my semiwestern grip. instead of going that route, though, im going to put a full poly polar in, and im thinking to get that same sense i would go around 52 or 53. as a player, i do take big cuts at the ball as i try and set up my big lefty forehand to put away points, which makes me believe that poly is the way to go in regards to advice from you and others.
i hope this clarifies/makes some more sense of the situation.. thanks again for helpin me out here, i really appreciate it.
-sean