don't know about Brazos. Betwen dawsons, caspians, and egw, I'd go with the dawson. They are the only one w/a front sight narrower then .125", which I have had several people with Bo Mars ask for (people looking for a little more light on either side of the front sight w/out having to take a file or stone to the rear notch).
i used a egw, took a small drill bit and drilled the actual hole the fiber optik goes threw , drilled it all the way to the other end of the sight. this way no super glue is required when fastening a new fiber optic stick. it works good. all personal preference.
We offer many different styles in 0.125, 0.100, and 0.090 wide. The fiber on our sights is longer than most everyone else's sight on the market hence brighter. The Microdot model is also unique in that you are looking through a post with a hole in it to see a fiber optic dot, this gives a nice crisp sight picture to focus on the blade or the dot whichever works best under the circumstances. I believe the wilson dovetail is 0.290x0.060x60 degrees. We offer several models in the STI/Heinie dovetail cut 0.300x0.060x60degrees which should work for the Wilson cut, it will take some work with a file or preferably a mill.