Grey Wolf,
I use a one inch model for 4x5 prints and test strips for larger prints. For 5x7 and larger I use a two inch model. I have a couple of Simmons brushes that work pretty good but not as smooth and consistant as the 9010 brush. The 9010 gets my vote hands down.
Clay, that rubber coating worked great on my two inch 9010 brush, wild red color!
Wm Blunt