After countless times of ruining a brand new counter edge when trimming the top down to the final dimension, I came up with this trick to provide consistent trimming and finishing of the edge.
https://www.amazon.com/Freud-Bearing-Flush-Shank-42-100/dp/B0000225Y7/ref=sr_1_4?s=hi&ie=UTF8&qid=1519848096&sr=1-4&keywords=freud+3%2F8+bit