RE: How come I never....
Hmm, maybe you don' t hear about them much because they are fairly new so there isn' t much data on them, or they are and answer to a question that wasn' t asked, or maybe even people are afraid to admit they are gullable to advertising gimmicks. Honestly it may be a great little cartridge, but great for what? Nothng more than a souped up pellet gun.