Dr Zook, don't be silly, there are no gaps in Ed's joints... he rolls them tight! The reason they are bent by design is for adjusting valves, If you use straight feelers they will bend and that usually chips the chrome finish. As far as for woodworking how about: Figuring out the proper size shim for leveling your saw's table, checking the squareness of your jointer tables with a straight edge(to see if it needs shimmed) checking the height of a planer blade after having it flipped or sharpened, I'm sure Ed has thought up other uses but these come to mind.
"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"