I've had good luck on plywood with this compression bit. It's downcut over most of the flute, but the very tip has a few mm of upcut. So you avoid tearout on the backside and get a clean top finish as well. https://smile.amazon.com/HOZLY-6X25mm-Carbide-Cutters-Compression/dp/B073RKDLDR/ref=sr_1_1?dchild=1&keywords=B073RKDLDR&qid=1607550246&s=industrial&sr=1-1