I'm wondering what (if any) are the typical preferentials given to outside investors in self-funded deals?

Jim Stein's blog said he typically sees a 8-15% coupon given to outside investors, but I've also heard anecdotally that self-funded searchers don't give any preferentials to outside investors if they're providing a 7a PG. I'm wondering which is true and what other types of preferentials searchers may be giving?

Thoughts?

If there are any good resources to look this type of info up in lmk...