Which of thee nocks do you all prefer and why. How does the nock fit compare between the 2. I have the bohnings now and they fit my dacron strings well but are too loose for my fast flight strings
Marco nocks will be a better fit. In my experience, the 5/16" nocks work well with strings served for Gold Tip nocks but the 11/32" are very tight except for the thinnest of servings.
Classic nocks have a softer snap than the Marco nocks, the classics also need a larger serving to fit because they have a bigger throat. I think the classic nocks have the best string fit of any nock out there. I wish they made a classic push in nock for carbon shafts. If your nocks don't fit your fast flight strings just re-serve them to fit, that's the easiest solution.
I use nock point above and below my arrow which I tie on with ff or dacron string. I then tie dental floss between them to build up to fit any nock for a perfect fit.
I like the Marco nocks because they are "beefier" than the Classic nocks. They seem to fit the FF strings I have and if I need to adjust them for B50 strings I just sand them with an emery board, equal vertical strokes on each side. I have never had one break, as some have warned. ;)
I have yet to find a nock that I like better than Marco. They seem to have just the right snap on tension for the skinny strings I use.
What Cedar said.