Just did the Hotcams Exhaust cam on the 426. OK, I know I'm always different than everyone else, but I kinda think the start drill was easier. Not to worry, it's a cool mod, less weight, and I'm sure I'll get used to it. I used to be able to start the thing in sandals, now it's boots only. All I can say at this point (a ride down the street) is I think it's a little quieter at low throttle, probably due to less duration, and smooth. It's certainly not more "finicky" like I thought it might be. Can't wait to let 'er rip.