i am a serve and volley type player. i used to use klippermate synthetic gut, but it dosent last long enough. i need a new string for my mains one that is durable, but wont take away from the touch i need.
I play a lot of serve and volley. I suggest you try natural gut mains with synthetic gut crosses. If you use the lower prices guts, it's about the same cost per racquet as premium multis, and plays better and lasts longer, in my experience.
Otherwise, go with a good multi. Most polys aren't good in the touch department, but Big Banger Ace is OK. Compared to a gut hybrid, or a multi, it's harsher on the arm.