If your peg holes are pre-drilled, they are good on raising day to temporarily pin a connection. ...They are especially great for braces -- stick the brace in the post and slide a pin in and it has more play in it than it would if you pegged it off hard -- it makes it easier to insert the tenons if you've got a little knee action.
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Yeah, Jim, I know the socket extension idea is kind of out there. I know when I'm out of my league. But the above quote seems to suggest that having some "play" in joinery fitting/raising can be useful at times too.
