I love NEW DeSIGNZ - always quality products. My Impulse has all NDZ upgrades. But the Tru Flo V3 Bolt kit - I'm not a fan. I'm the first one to admit that I'm not much of a tuner, but I didn't expect the consistent bolt stick I experienced with this bolt in my MINI today. Maybe it's because I switched to the hard from the medium spring (which worked fine the one time I used it). Maybe it was the bad paint I had. Maybe I put too much/too little DOW on the o-rings. Not sure. Whatever it was, it made me miss out most of the day of play because I kept getting jams. So, as much as like to upgrade, it's back to the stock bolt for my MINI.