Here's what I've gotten to...
Same-security-traffic permit intra-interface has been run on the ASA.
Nat (inside,inside) source dynamic Inside_Subnet interface destination static Inside_HTTP_Public Inside_HTTP-Server
I got that from this site
I can't tell if inside_Subnet is just an object (I think it is). But if that object is an object for the inside LAN... if that's the case, why an inside interface can't be specified.