Been using carbide for some years now, have to switch to gouges to stop end grain tearout on bowls. Just set up my Oneway Wolverine sharpening system. Have some old Shopsmith HHS gouges from 40 years ago when I started my woodworking hobby with a Shopsmith (that's about the last time I used gouges too). They are 16" long, and seem short to me. What is a normal length gouge (roughing and others)? Tx. Randy