Well, not sure re the gear alignment? The plastic gears, none are stripped at all. The metal bracket that holds the larger flat gear is an L shaped bracket screwed in place at both ends of longer portion of the L and cannot see how that can be “squeezed” together at all? That bracket has no give in it al all. The shorter end of the metal L bracket holds the larger flat gear with use of a C clip, again no way I can see that can be adjusted for gears to be tighter. The plastic piece that gos into the arrow is simply a push in place piece as far as can be pushed in, seems to be as tight as it can be pushed in. Maybe possible for the “arrow” to be spinning off that piece, if so other than gluing with contact glue not sure if that would solve problem or not – but at that point that piece and the arrow are not coming apart again, so if it was still spinning off direction would have to get complete new head piece. I see where BCB indicated “reglue” them and since dont think they are glued to begin with not sure about that?