rozroz, ill add this. If your game is not based on pace and spin to keep the ball in the lines, there is no reason to buy poly. If you are redirecting shots and basically playing a defensive placement style with finesse shots mixed in there, I am rather sure you could just use Syn gut and be fine. Do you have to restring that syn gut every 6 hours? No, just play it til it breaks if you want and enjoy.
Will that syn gut last an entire year? I have not seen it. I play with guys who play that style and their strings still break.