alu power/ syn gut or nxt, x-one bipahse full, cyberflash/nxt, or PHT/Xcel. I am a 4.0 baseliner who hits with moderate topspin and has a big slice serve.Currently using a Dunlop aerogel 200 18x20 strung with Dunlop Max comfort 16. please keep in mind these strings have to last me at least 2-3 months. Thanks for the help!