Hi, I'm a newbie to this jig. I'm getting close but I'm not getting perfect half blind dovetail joints. I bought the jig second hand at an estate sale and it is in great shape. Came in it's own wooden case, pretty slick. I believe I've followed directions well from the manual and you tube videos. I'm a little sketchy on the router bit depth. How do I know that the bit depth gauge on the jig is set correctly? I know that deep depth is tighter and shallow is looser. I'm at the point where the tails fit into the pins more than halfway but do not insert fully into the pins. Do I need to keep fine tuning the bit depth on the router into micro-moves until I nail it or is there a template adjustment that can help me? Thanks for your time.