Any release with a trigger adjustment needs to be set to handle the draw weight of a given bow. To set the trigger weight, you can run a piece of cord through 90 - 100 lbs of free weights and then tie a piece of loop material (in a loop) on the end of the cord. Set your release trigger really light and keep adjusting until you can lift the weights off the floor without it misfiring. It is a very good idea to put some thread lock on the adjustment screw as some of them can work loose over time and cause it to start misfiring.

I' ve also had lint (yes the kind in your pockets) cause a release to misfire, believe it or not. Not sure where it even came from, but my release misfired on me a couple of times at a 3D shoot. On inspection, I found a tiny ball of lint had made it' s way between the calipers so they could not close all the way. Luckily for me, the first time I only caught a glancing blow on the chin. The second time, I was making a point to draw away from my face.