I like as short a loop as possible, so I tie/serve two nocking points on. One just above the arrow knoc and one just below. Then I tie on my string loop around the outside of the served on nocking points. It does two things, 1. It prevents the served on nocks from moving and 2. The served on nocking points keep the string loop from moving. Everything is nice and tight and because the upper and lower nocking points are tied/served on and not brass, it keeps things light.

It's a little tough getting the string tied especially if you have a shorter string loop, but once it's on and pulled tight you have enough room for any type of release and the arrow nock has a nice cradle to sit in. Just make sure you adjust your served on nocking points before you put your string loop on because it much tougher to move everything at once.