I went to a GP to be easier on a reconstructed left shoulder, I have found it makes me able to paddle farther and roll easier then a euro paddle.
I have made a number of GP's now but the carbon ones that can be purchased really far out preform the wood ones IMHO. I have a Novorca carbon paddle. http://novorca.com
The quality of these paddles are really a work of art. The strength will make the paddle last a lifetime and the light weight will allow you to paddle for a lifetime.
I am hooked on the GP and dont see myself going back, last weekend I did about 50 miles with my carbon GP and the light weight sure had me going farther faster then others I have used.