Ya I modded the **** out of my original trigger, but to no avail, I could only get 3-10 round bursts. The stock triggers catch just does not reset properly, unless you have some serious polishing skills, and even then I have my doubts. There are cheaper trggers out there, such as the rock river 2 stage that work, but my suggestion would be to just pony up and buy the timney, its the only sure thing right out of the box. Also if midway has a sale on them, we have a coupon thread for them, so you could potentially get it alot cheaper than most did! As far as technique I found that I was pulling forward way too hard! Try using the palm of your hand leaving your hand open and pressing forward on the rail just in front of the mag. Dont grip it, just let it slide back with every last little bit of recoil it has. That got me my best bursts and almost a full mag dump with the stock trigger.