well, they come from the factory unstrung, so their is no 'stock' string, what did your shop put in it, do you know?
I personally like a softer poly at around 55, but Meaghan is stringing his in the 40s!
I am currently using Solinco Outlast but will switch to Kirschbaum pro line evo soon. (now, which are the best blue OGs? hmmm)
5.0 all courter. 2 x Donnay X-Dual Platinum 99s 2 x Donnay Formula 100s (no, really!)
"Tennis isn't easy" - Corners