Can't really figure out what's physically happening with my Bosch 3X" planer, it invariably leaves a 1/8" snipe as soon as the forward bed goes over the edge
of the wood unless you deftly lift the tool up at the last second, and I'm not that deft. There's no adjustment on the back bed and the blades are of the double edged, throwaway variety so there's only one fixed position they install in. Maybe the front bed is cocked? Hadn't thought of that. Be right back. Nope, it checks out with a straightedge. Who knows?