Have any certifiers chimed in on this? Using before and after "temp-cals" combined with other rationale (temperature change, travel time, course measurements difference) seems sensible as well as abusable. Maybe the discussion should involve limits such as % difference between course measurements (0.0004 in lieu of 0.0008?) and a detailed explanation of the other circumstances that made an official post-cal impractical.
We have a cal course in Fairfield, CT. It is 17-mi from Stamford, CT After 2 measurements of courses in Stamford, we decided to layout a new cal course in Stamford since the 17-mi travel time anytime after noon is at least an hour. There are 2 of us, making it practical to layout cal courses as needed. We have 32 active cal courses in CT. Since the combined age of the Guido Brothers is over 150-yr, and since it's always a goal to get, find, develop or recruit new measurers, maybe a relaxation of the post cal process would help. I'm betting that laying out cal courses is an important reason why more people don't measure their own race courses.