Down-cut you usually plunge on an angle or start on the edge, but here you are only talking about a couple of mils… Normally down-cut are used when routing all the way through the substrate… When I sold my equipment, I keep all the little router bits thinking that some day I will build a small tabletop router… Them little dudes ain’t cheep… I will have to blame it on @asasergio, he has got me thinking about it again…