Just for emphasis, I agree completely with Charlie and toller. Pocket
holes aren't as strong, durable, or attractive as mortise and tenon
joints.

foggytown wrote:
Pocket screw setups look much easier than mortise & tennon and,
apparently, are just as strong. Unless a through tennon extending
beyond the rail is required for structural or decorative reasons, are
the two systems actually interchangable?

FoggyTown