I found it easier to glue the full sole onto my boots prior to cutting flush, allowed for a little bigger margin for error and with c clamps (with a thin shim) opposed to ole glory duct tape. Id also suggest a quick dab of the same adhesive on the studs before screwing them in fully (just ensures a full life of wear and tear) otherwise great video
I've never had any screws come out and I don't glue them. When they wear down to almost nothing, I replace them and they are still in pretty tight requiring pliers to grip them and unscrew...