Someone else tracked heavy guitars. 3 mics per cabinet. I normally use 1 mic.
4x3.... 57 a 121 and something that should be labled "toilet". Toilet was useable with IBP, and used for fattening the overall image with "toilet" hard panned. I like it on 2 57s up close for an almost M/Sing kind of mojo.
I used it once to flip overheads away from the snare to make the hat bleed lay down. Worked like magic in that mix. Luck! (not my luck, I have none.)
I move my room up if I feel like it, so YES, people still do that, just like locking offset and dumping between reels back when it was a secret and took like half an hour. (billable!)
IBP is very cool. Can it fix awfully recorded drums? Nope.
Edit: I time alter my DI vs Mic tracks by eye, then ear. The slipping feature does nothing for me.