I had a great week with some babs out here. Seriously considering going that route...The only thing is that my groundies are garbage. But my serves and volleys are super good. APD slice and approach is out of this world.
I tried the PDR standard and the APDGT (aka the Lovitz).
I like the APD better around the court but the PDR serving is sort of incredible. I could pop my first serve flat out wide with crazy consistency. Again though my groundies were just awful. I play a lot of doubles though so it's doesn't show as much.
I must contemplate this further.