^
Yep, that's literally what it comes down to. When you think you've tried everything, you haven't.
Get a mixed backing track on the go and get a tone that works without any EQ. Start in the "typical" position (mic where the dustcap meets the cone, 1 inch away) and then move it further towards the cone, try moving it back another couple of inches too. My best miced tones came from moving the mic back from the cab about 3 inches rather than just 1 (but that was to accomodate for my Framus cab's overwhelming 10khz fizz, which your orange shouldn't have, theyre much nicer built cabs.)