I compared core sound vs. sound pro when I first got into stealthing and ended up with at933 hypers with the sound pro selectable roll off battery box and ran them for about a year.
I listened to many core sound binaural tapes and all of them sounded unnatural. Limited low end on just about every tape I heard. Maybe they do a good job when placed 5 ft from the stacks but in those cases, most mics excel.
I do agree with the comments that the sound pros will distort for loud shows. I messed up a couple shows with them at high SPLs and ended up ditching them shortly after that. My best results were for the small venue rock shows that weren't thumping bass and screaming guitar solos.