I just ordered a Veritas custom 5 1/2 with a 40* frog. I know Derek Cohen has a 42* frog on one of his planes. And I believe I read someone has tried a 40*. I decided to go with the lower angle since I use mostly straight grained cherry and walnut. I'm thinking it will be a little easier to push for a roughing cut and hoping for a Lille smoother result when smoothing.
so what do you think of the lower angle? Strengths and limits?
I guess that kanna with their usual bed angle fall into this category as well.