As title says, I am trying to use the PC dovetail jig with the Miniature Dovetail Template to cut 1/2" x 1/2" box joints in 1/2" wood. I have a 1/4" diameter straight bit and am using the 3/8" O.D. Template Guide, all per the manual. The problem is when I tighten the template guide using wrenches (if I don't, within 10 seconds of turning the router on, the template guide becomes loose). When I turn the router on, the template guide must be rubbing up against the router collett (??) as I begin to see sparks. This doesn't seem to be that hard, so I must be messing something up. I am new at this, but have read both manuals and watched a few YouTube video's and it seems straightforward. Can anyone suggest what I might be doing incorrectly?