Hello! I've moved from buying strings at my local Sports Authority to buying strings from TW hoping to find a much better deal and I recently found Tecnifibre NRG2 G18 strings which have been absolutely wonderful! I still want to try out more strings and I'm looking for recommendations. No polyester though, last time I tried it, I hurt my shoulder pretty badly during serving. I've been looking at the Tecnifibre X-One Biphase in G18. I've always been a control person so I don't care much for power. Durability is not much of an issue nor is spin since I do not hit with that much spin. I have only broken two types of strings, Babolat Natural Gut and the last set of Tecnifibre NRG2.