Steel brush?? not sure what you mean.
Don't be deceived, there are plenty of things that are wrong to my eyes. Two things that have helped me, using thicker wood (If I tried to cut this in 1/4" stock, it would be a disaster) and a good magnifier light. A lot of things get hidden in the pictures, even though I don't to any retouching of them. Anyway, thanks for the kind words.