Hi. I have a rookie question here. How do you guys route out cavity with prependicular (or very small radius) corners? I have the jig of the pickup cavity already made, but my top bearing router bit has 3/8" diameter, which I think is the smallest as they come for a top bearing bit, and I can't do a tight corner routing with it. I do have a 1/8" Dremel router bit, but then I'll have to do it freehand instead of just following the jig, which add to the chances of screwing it up. So any advice on other ways of doing it? Thanks.