i just got a neptonics trigger for my next speargun project and the line release has led to a couple of questions: where exactly do i mount the set screw that works as a fulcrom for the release? it seems that it would be centered on the slot on trigger, but how far FROM the trigger does it need to be? also, there is no spring to reset it, is that normal? on my riffe guns, all have a spring. is it missing?or just doesnt call for one. i will take some pics and post them in here, soon.