fedex, i had the same problem 2 years ago when i bought my PD+. I think that its either:
1. Making bad contact, not on the sweetspot, which can cause TE b/c its a very stiff racket
2. Not strong enough-lift weights, my te seemingly went away after i started working out
3. It could be that youre not used to the weight (highly unlikely)
4. A combination of the above.
5. The racket might just be too stiff for you, certain people have different sensitivities to these sorts of things.
(1) blx 90