Spoken like one who has inadvertently blown by a split or two in his measuring days, Mark - from one who has done this too many times. My worst was missing a split while measuring next to the U.S. Capitol one sunny morning. With several Capitol Hill Police, motorists and pedestrians and security cameras staring quizzically , I had to back up the bike about 50 yards. I'm lucky they didn't snatch me up and haul me off to the Looney Bin.
If you find something that works, animate or inanimate - especially if it also keeps your coffee warm, let me know.