Frank,all the adaptors and inserts interchange.I use 11/32" adaptors in all my 5/16" arrows.My arrows are the same diameter as yours,2016's and Gold Tips,5575 and 7595's.So little protrudes beyond the shaft diameter and the rear edge of the adaptor is slightly rounded,so it causes no problem removing them from the target.
Using glue on heads and 11/32" adaptors,allows you to achieve almost any weight you want to match your setup.You can further fine tune point weight by adding a few lead shot in the nose of the adaptor or filing off a little of the adaptor nose to reduce weight a few grains.
If you should happen to need a 75 gr adaptor,only use the Premium ones sold by 3Rivers,Braveheart and I believe,Kustom King.The old style have a weak spot.I don't use the aluminum adaptors myself as the steel are stronger and help with FOC.
This is a Gold Tip shaft,standard aluminum insert and 100 gr steel adaptor.