I can't help you with your H14 jib problem. However, if it's not too late ($$$), consider the magical H14 "Maxi" Bob Curry has created (see photo). Although the furling "blaster" headsail gets a lot of press, the powerful squaretop main is unbelievable. The speed he gets out of this boat on main alone is just not normal behavior.

Why spend good money on an old slow design? Unless you absolutely need a class H14 setup for H racing, his sail plan rocks!