What is the difference between...

[betovanbuuren]

I was look at the specs of APDC and PDC, and both have almost the same characteristics, the only things different are: aero frame, stiffness and 0.1oz lighter the PDC.

So what are the main differences between them?

[Xtreme]

for one the APDC gets a helluva lot of spin IMO

[betovanbuuren]

more than the pure drive?