I recently made the switch from a light OS "tweener" racquet to a PK Ki5 315, mainly for arm issues. I didn't demo this racquet like I probably should have, but I'm hoping to develop better groundstrokes based on the 315's higher demand for a solid hit. Especially when it warms up a bit, I will try to play a few times a week. Will moving to a players racquet typically facilitate improvement, or should I have looked for a more arm-friendly tweener? My forehand and volleys are struggling a bit with the new stick compared to the the old one.