I played with the new babolat pd(cortex) today and loved the pace, the spin was okay, but not as much as I thought there was going to be. I was hitting with the plus(only one in) and my arm got tired after a few hours, which usually doesn't happen. I tried the apd that same day and loved the "pop" feel and sound and the spin. Firstly I was wondering as to whether or not the plus gives less spin compared to the standard, maybe because I was getting less headspeed. Also does the pd always feel soft and the apd always have the pop feel. Or is it the string or string tension possibly?