30s do work better off inline boards but some do run 40s off them. I would add a couple dipseys before I ran the 40s on the offshores personally. The dipsey bite has been hot this year with spoons. 2 dipsys and 2 jets straight out the back or you can run up to 3 dipseys per side if you want pretty easy. The dipsey will give you a spread to help prevent tangles. Hope this helps!