The Crawler is the uber-Abraxas. It has still enough PAF-pedigree to call it more vintage than modern sounding. It's medium output, not much hotter than say a VHII. What I like about the Crawler that it beefs up every bolt-on guitar. It is huge, fat, creamy and organic sounding. Sounds bigger than the Diver. It growls like a bear when pushed, in a unique way that I didn't hear in other BKP's yet. The topend has a little less chime than the Abraxas, but there's enough topend available, so it's not a muffled, dull pickup. In my strat solonotes keep weight above the 12th fret. It keeps singing higher upon the scale. At the same time the Crawler delivers rich cleans. You can thin them out with the guitarvolumeknob. The Crawler splits really good. I can get a very nice balanced Fender-quack on the fourth position (Crawler splitted/middle Irish Tour).
I play everything with this HSS-strat. From funk, pop, blues, rock to hardrock. With the right amp the Crawler will do (prog) metal too. It's not the tightest of the BKP-bunch, but for me it's tight enough. If you don't play ultrametal or are aiming at the EVH-sound (get the VHII !) the Crawler is a very good allrounder for any HSS-strat/ash or alder bolt on-guitar.