Not to bring these guys down but......it doesn't seem that much faster than this...
Just get a nice short reset trigger and practice practice practice. I seems that the 3MR also has a learning curve.
At first glance I thought the 3MR would be fun, but I think I'd rather stick with the Geissele SD3G or maybe try out the Wilson Combat 3 gun trigger.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul