"I've tried three times in Safari, once each in Firefox and Chrome, to register for this event. I get JavaScript errors around mis-matched top-level domains in Safari, and unspecified errors in the other two browsers. A Core 77 logo appears very briefly over the form, and then nothing. No visible sense that the registration has been accepted."
"Another idea: If the round-down is 18 and round-up is 19, just skew the tape until it measures 20 diagonally, and mark at 10. If that's too strong an angle for the piece, you can always hold the tape so it measures 19, and mark at 9 1/2. This trick works great when you need to divide a piece into thirds or quarters or fifths or whatever, just by setting the diagonal so that you get a common divisor."