Good point. Don't know. Mine look like they will need about 3/16", maybe a little more. It's pretty cheap to find out, though.

Eddie - "bias" is the unspoken-of phenomenon that occurs when you put humans in charge of subjective, comparative assessments. Perhaps you're correct, and I hope so. My experience has proven otherwise....I've observed "4 cycle bias", I've observed "name bias", I've observed "no name bias", "airplane bias", and yes, even "age bias".

Personally, I do not believe TRUE objectivity exists; even in the finest of judges. Our analog brains are not automaton-based. We cannot ever COMPLETELY eliminate behavior, attitude, or opinion-based aspects from creeping in.
Besides - the best judge in the world is still making a score based on what *he* thinks it's supposed to be. I'm sure you all haven't been surprised by the number of "45 degree" lines that are available for a variety of scores