jib modification

I have DS$B-7(J, sail#5582.
And usually sail in SAGMI bay in Japan
I'd like to have much bigger jib than original one.(longer leach)
IS there any problem? And how to make(get) bigger jib?
I'll apriciate any advise.
T Akou(Japan)
tetsuoakou (tetsuoakou-at-cwidc.com)
And usually sail in SAGMI bay in Japan
I'd like to have much bigger jib than original one.(longer leach)
IS there any problem? And how to make(get) bigger jib?
I'll apriciate any advise.
T Akou(Japan)
tetsuoakou (tetsuoakou-at-cwidc.com)