I've switched from the LM Radical Tour (18x20) to the LM Instinct Tour XL (16x18) - and I've lost my forehand. I used to hit deep, heavy balls with my Radical Tour, but I can't do the same with the Instinct Tour XL. They're landing short - around the service line. Any tips without modifying the racquet? Same question for my serve.... My serves land out more than usual.