I have used CVA, Knight, and Winchester AA shot cups and have not seen a good pattern yet out of my ML 12ga. But, I have not really went out there with everything and just spent the day to find out what works. I always go out with an idea of what should work, try it, get disappointed and go home. I plan to spend a full weekend if I have to this spring to find a good combination.

I was really glad to see Screwbolts post because not using a cup seems like a great option too.

I will say this, if you buy the Knight cups, they hold 2oz of shot. You will have to either shoot that or cut them down.

The modern shotgun cups you asked about are the cheapest option for a cup, but usually hold less shot than the ones made by CVA or Knight.

I will be trying that elmer's glue bottle trick. It sounds really practical.