Statistics for blocked punt

[radiomouth]

Looking for a correct function to record the effect of a blocked punt for team and individual statistics.

Is punt distance recorded from the line of scrimmage to the point of contact by the player blocking the punt? where the blocked punt is recovered? at the end of the return picked up by defense?
Is the net return recorded from the line of scrimmage to the point of recovery by the defense? what if offense recovers the block and ball is turned over on downs? if offense recovers beyond line of gain?

Any other insight on punt statistics you have encountered?