tried the AHB-1, 2 & 3
1 (std) : crazy high output. quite some lowend and low mids. they actually sound better to my ears (in some ways) than the EMG81 with their nasty upper mid, thinned out bass+low mids voice.
But then the blackouts sounded like a bloated mess with my setup (because of the fatness/throaty quality). EMGs don't have a nice EQ curve to my ears, but they give you that tight distortion!
Just have to tweek your amp EQ for the EMGs to compensate (as you would anyway).
2 (metal) : even more over the top output, even with the jumper. this is a crazy huge mid push.
harmonics jump right into your face! It's almost easier to get the harmonics, than to play without them. no clean or crunch tones possible with these. had them in for about half an hour...
3 (EMTY) : best of the bunch, YMMV. much tighter and still hot but not as crazy. i actually liked and had quite some fun with them, but sometimes i heard a bit of a cocked wah quality...
in the end i sold them, although i did hold on to the EMTYs for years, but i got too many PUs anyway...