Pen blade mostly, 'cause that's what's usually there on my knives. I like the pen shape of the Small Texas Jack in particular. The only coping blades i have are on whittlers and should normally be used for carving. I'm more of a whittler (in the court house square-rocking chair traditional style) than a carver. Surprisingly, (or maybe not) all of my wharncliffe blades are large mains and not small secondaries. Since I own no stockmen (two on the way), I have no pure sheepsfoot blades, except for a large one, on a knife with a marlinspike, that I seldom carry.