«  Must trigger the bass drum! »

I use them for a few months. I previously had T-drums, and pro DDrums redshot (a real shit these). What I like about these triggers is their operation, other brands could learn from this system. A small hammer is coupled to the drive of the bat the bass drum, which has the effect of putting it in contact with the trigger cell, therefore no double blow nor its parasite, so if you want to adjust the sensitivity maximum, no problem, handy if you play fast. The setting, however, will take a little longer than with a conventional trigger. The price of the sensor is expensive, yes, but well worth it! Choice I would definitely do it again!