My first Starboard: question

[truth]

Hello all. I just finished my first season/year of windsurf with a (really) big board (RRD Easy Rider L) and I want to evolve/move on, so I am planning to buy my first Starboard for 2007.
I am 37, 75 kgs, and after one year of windsurfing I am able to go with light/medium winds. I use a 6.0 Solo Neil Pryde Sail, and I am going to buy also a 5.0 and a 7.5.
I usually sail in North Adriatic Aea (winds from light to medium, no waves) and Garda/Como lake, in the morning (light-medium winds).
I would like to know if is best, for me, the Carve 162 Wood or the Go 155.
I would love to keep this board as long as possible and to learn very good planing, straps, speed jibes.

Thank you in advance

Gio - Italy