I was nosing around on the Doinker website and saw this.

"You the shooters asked for it so we made it, the NEW 421 Weight System. This weight system is for the archer that desires a lot of weight in a short space and in 1oz at a time. The weight is a 1oz, 2oz and 4oz, it is 1 1/4" O.D. with a 1/4-20 thread to fit on all of the 2010 line up that use the new 7/8" and 1 1/8" Doinker Supreme. It is perfect for all of the Elite and Fatty line. It is larger O.D. but much shorter in length than the Universal stack weight which shows on the pictures below. This weight system will be available through us at our online store with in two weeks. It will only be available in Stainless Steel and not only sold as a set but also individually as well."

Weights on the left are the new ones and the ones on the right are the universal stack weights. I think this will open up some more options.
Second photo shows the new ones on the right.