G Nocks work great in 0.165/0.166 ID arrows. I’ve had great success with the Nockturnals in both Easton and Day Six.
Just make sure you get a good nock fit on your serving, the size can be a little different than the Easton G nocks that come stock. I’ve had to tie new nocking points to get a good fit and eliminate pinch. Otherwise, they’re very durable.