Thanks guys!
Jon, I’m not sure which issue you’re having with getting a clean back ring. But a common issue I run into is the wood wanting to tear out on the backside of pin knots. Compared to Osage, it’s like Black locust has stiffer but more loosely bound wood fibers that run its length. The way I tackle it, is to chase to the ring above the one I want, not worrying too much about tear outs. Hen depending on ring thickness I’ll use the draw knife to reduce the rings thickness so I’m just seeing the early growth in spots. Then I’ll switch to the scrapers and clean up the ring. Leaving a decent amount of early growth on the back until I’m done with my pencil marks. Then I clean up the pencil marks and early growth at the same time without reducing the thickness of the good ring any more than necessary. And around the pin knots I don’t use the drawknife for that final reduction, I use the scraper for that entire last ring.
I hope that makes sense
Kyle