So if you tighten the screws to hold the jig set up it is usually recommended to use the shorter length of Allen key and cosy the screws. No have to tighten it down as difficult as you possibly can if not you can deform the jig. You should NOTE: https://beckettrhyis.elbloglibre.com/32913614/5-simple-statements-about-ghost-gunner-for-sale-explained