On the flipside, during a PBP Audax some years ago, I mostly hovered at the back of the group, helping change flat tyres and pacing dropped folk back to the bunch. In the bunch, my trusty Topeak Alien multitool acquired the same sort of reputation as Doctor Who’s sonic screwdriver. Tightening loose nuts on a ‘50s Singer, snugging up loose disc Torx bolts or singlespeeding a carbon wonderbike, completed quickly and efficiently. Several of the problems couldn’t have been solved with a less comprehensive (and lighter) multitool.
The only unfixable problem was when a hydraulic brake hose was pulled out when a rider crashed. Luckily it was just a few kilometres from the arrivee and the rider still finished, just using one brake.
After the finish, some riders presented me with some flashy bubbly for saving their PBPs. I count that as a win.