Offical disclaimer, I'm much more of a rank amature at trout fishing than a pro. Hopefully, one of the pros will chime in behind me.
The Cutts I have caught have been scattered up and down the length of the river. I have not been able to pattern them in any other way EXCEPT nearly every dry fly fish I have caught has been a cutt. I think about 3 of of 4 of my dry fly fish have been Cutthroat trout. BUT, you can't just force the dry fly bite. I would put my over all Cutt percentage to be less than 5% of the trout I have caught.
Every Brookie I have caught here has been within one mile of BSL dam or Norfork dam. No exceptions. Most have been small, but beautiful. No fly or technique specific trends just lagniappe mixed in with the bows and browns.
Take a look at your Arkansas Fishing Handbook from the AGFC. In the past, they have listed the number of trout stocked broken down by species. If nothing else, it is a numbers game. The breakdown is Bows (by the ton), then Browns, Cutts, and last and very least Brookies. IN 2009, AGFC stocked almost 1.2 million trout in the White River and about 100,000 in Norfork.
The fact that Cutts and Brookies are so physically small when stocked doesn't help their survival rates any. I think they are usually stocked at < 8 inches. I have a friend that refers to Brookies as expensive Brown trout food and I have personally seen a small group of just stocked Brookies getting run by a fairly small Brown (~16 inches).
I think I read that Rainbows are usually > 10 inches when stocked which seems to jive with my on water experience.
We all want to catch "a slam". Good Luck in your quest.