Things the Mechanics Manual Doesn't Tell You

[SC Official]

Originally Posted by BillyMac

For example, we point to floor for two point field goal try when shooter has a foot touching three point line.

FTR I do this and it's not in the NFHS manual (which we use in SC) nor explicitly approved by our powers-that-be. So, this would be one example where an official (me) uses an "unapproved" signal, but nobody who matters is going to lose sleep over it.