So I've been using a babolat aero storm tour GT for a month or so now and I love it! I've been using babolat syn gut but it sucks so I'm wondering what relatively cheap (>$15) poly's you all would suggest. I just strung my racquet up with a relatively stiff poly and it gets the job done and I don't have arm problems but I'm just looking for something with some more bite. I already ordered sets of Tourna Big Hitter Blue Rough, Solinco Tour Bite and Kirschbaum Pro Line II. Are there any other strings you'd like to suggest?