Mechanics questions

[Zeke5]

Is there an official NHFS book on mecahnics (or suggested
mechanics)?

Obviously there is going to be a lot variance from state
to state (even chapter to chapter).

For #1 I do feel that that the kill clock signal is
redundant. I only give one slow incomplete signal for an
incomplete pass. I guess you have to have some faith in the
clockman since I've never seen anyone give the kill clock
signal after a touchdown signal ...

For #2 I give 2 winds and 2 kill clock signals, after which
I will signal to my R if the ball was OOB by snapping
finger (on snap), or in bounds by tight winding motion of
finger (start clock on ready).