sailquik said..
I would not recommend using the 7.1m race on the 430 mast. In my experience, it does not like that at all. It is much better on the 460 mast.
On the other hand, the 7m Koncept works perfectly on the 430 mast and is noticeably lighter to handle in the transitions, especially when over powered. The 7.1m Race has slightly more power and amazing stability when overpowered, but heavier and harder to handle in the Gybes.
I think you would like the Koncept more for what you have indicated.
Yep ..agree with sailquik (and his knowledge far outweighs mine) ..I have used Concepts in chop and ocean for years over the "race" for two main reasons, smaller luff sleeve, thus a bit easier to water start and a bit lighter in gybes.