"The helicopter community is one of the finest group of people I have ever come across but I'm sure there are exceptions"
I'm not a Robbo-ist but I believe they have a painted white line that goes out of alignment in the event of an overspeed on start.
I heard a tale once that a group share member oversped the machine, and then scraped off and re-painted the line !
That might be an urban myth type story, but you get the idea...money, or the fear of having to lose it/pay it out can do strange things to a community's most fine citizen !