I agree with B.D. about easier & more effective ways to get HUGE guitar tone.
I a studio it would, normally, be the case of the same player doing a second take with the slight timing differences and any deliberate changes in tonality adding up to a BIG sound.
With BIAB you can duplicate a track, at a minuscule amount of 100% wet delay, use a different amp setting hard pan L&R and boost the level of the delayed duplicate, (the brain fixes on the 1st heard so one needs to boost the later sound to claim equal status.), and you should be good.
Then again the multiple instruments playing variations can work, as you've demonstrated, though the differences are great and can cause some muddying.


Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe