Do you mind telling us your bow make/model/style, bow weight at your draw, your arrow length, and your spine/fletching combo and point weight?
I also understand your nock question as I like my arrow fletch turned just a bit differently than the standard nock/cock feather alignment given by the jigs, but, as I now turn cock feather in it doesn't matter, but, grain orientation to your shooting style can be a consideration (cock feather in towards riser means slightly different grain runout).
I have pressed the nock onto the wood shaft to place the nocks on after fletching like I prefer, but, marking both nock and shaft to reorient if it comes loose while fletching is needed. Make sure you glue them on permanently after getting all the fletching in place.
Merry Christmas!!