RichGreen
Adventurer
Thanks Morrus - that's helpful. As I said in the post above, the sourcebook will be almost entirely free of game mechanics, but I really don't want to screw this up.AotHS mainly used our own ship "system"; there were no conflicts re. labels and terms.
I wouldn't release a fantasy adventure under both licenses though - I'd (and do) release separate products, a PF and a 4E version. A book like that would be littered with terms which are defined differently in each system (class names, as mentioned above, being an obvious example).
I'm sure it could be done if you were very careful. But we take the safe route and produce separate products (besides, most products need some rewriting due to different underlying system assumptions).
Cheers
Rich