Craig,
I forgot to include my e-mail so that you could contact me if you wanted example files. So here it goes mikewebster74@attbi.com
Regards,
Michael
There is a way to mate a sphere to the edge of a cylinder it involves creating an in context 3d sketch using the intersection curve tool.
1) Make the two parts.
2) Place them in an assembly and save it
3) Fix the cylinder
4) Mate the temporary axis of both parts coincident
5) Place the sphere...