Hi I am looking for a spin friendly, powerful racquet with an arm forgiving feel, around the 310-325g strung weight range, open string pattern for spin, for a 13 yr old. Definitely do not want a racquet that feels stiff. I will string them in either a softish syn gut, or Weiss Cannon B5E or Silverstring, so no arm-breaking setup. The DC Pro is touted to be a little clumsy due to mass in the head, but we had the old Becker Pro(orange and white) and witha few grams in the hoop, it felt stable and comfortable. Real spin monster too. The Wilson BLX Pro Open has the right specs, but we have not tried it yet. The Volkl PB8 315 also has the right specs and seems like it could be whippy given the low SW, but stiffness could be an issue,although my elder son uses the PDRGT with B5E/SS setup, and it feels plush. So the Volkl's stiffness sounds like it could be tamed with the right strings and also lower tension in the crosses. I have no experience with the Dunlop 500 Tour 4D. But I have the 4D 200 Tour, and it is well constructed. I like the Volkl and Becker range as the pallet system allows you to change grip size quite easily, without upsetting the balance, which lends itself to the growing child. The Volkls and Beckers also have a nice feel, from my experience with the BB London and old BB Pro. Thanks Would appreciate your help.