This is a nice overview.

Quote Originally Posted by Alex Hawley View Post
Kentmere Bromide: Excellent all around I think. Relatively neutral toned, I like the look of it. Available in grades 2, 3, and 4.
I did some quick BTZS tests with Kentmere Bromide last year and couldn't tell the difference between the grades 3 and 4 curves. Was it just me/my paper batch or are these two really the same?