RE: Good nocking point knot
When I tie on a nock-set, I use super glue to secure it--so far, never had a problems with it.
I usually use brass nock-sets though--don't get any wear-and-tear on a glove or tab. I think the "secret" here is using a good set of nocking pliers, and using them properly. I use the "Tru-Fire Pro" pliers, and when I crimp on a nock I crimp once,move the pliers 90 degrees or so and crimp again to assure I get it nice and round. These pliers also have a nock remover so you can take it off and not do any damage at all to the serving.
The brand nocks you use can also make a difference. I use Saunders--no problems with these.
For the record, I used Damascus gloves for years (one of the thinnest you can get), ABS Super gloves, and a Cavalier tab. My wife and son use calf-hair tabs.
I don't have any problems with tied-on nocks-sets, I just won't usually take the tiem to tie one on. Quicker and easier to just crimp brass and go.
Chad