John,
I would put it on the mainsail instead. Easier as the main does not flog anywhere as much.
Have a look at the link below to my boat for sale. The graphics I have were done directly from a .PSD (Photoshop) file I e-mailed to a graphics Company.
I agree with what Simon has said. Plus you can it in vinyl decals. If you need them done, let me know.

They will last a lot longer on the main anyway.