I've been dipping cresting and fletching my arrows for the past 15-20 years now, I started with Bohning paints and adhesives, and have switched to True North Paints for the last 10 years. I have had excellent results with both on wood, carbon, and aluminum. From my experiences with aluminum, with both paints, I have really good adhesion with Bohning Fletch Tite when used with their paint, and have used Duco with True North paint with fletching shafts. I wipe shafts down with cleaner before I dip, I will use a clear dip if I'm not going to do any sort of colored cap dip or cresting to help with the glue adhesion. As for inserts, as stated above gorilla glue on both aluminum and carbons. No issues with it on either type of shaft. For the nock issue, the Bohning Classic does have a wider throat than other nocks, so a thinner string is needed for other nocks, but depending on what I'm shooting for shafts and nocks, I use dental floss to build up serving where nock snaps on for the classics, and it can easily be taken off for other nocks. Good luck, and have fun with your adventure that traditional archery!!!
Jason