RE: Recoil Management Training..
Most folks rely upon the"school of hard knocks" and/or the "just take it" approach, IMO an almost sure fire spiral into "recoil sensitivity" except for the hardiest of souls....
The "is it loaded or is it empty?" drill mentioned aboveis a great tool, especially for breaking someone of a flinch (which should have never happened in the first place if the candidate made it past first base) or a "check up" as one flirts with the friskier cartridges and is expanding one's"comfort range."
That said, as useful as the technique may be, IMHO it pretty much lies just outside the realm of fundamental recoil management traiining, i.e.
** Informed, hands on, thirdparty guidance,
** Physiology,
** Mechanics and Physics,
** Psychology,
** Execution.