Of course! That is what we used to call the "ball and dummy" drill when introducing new recruits to live fire handgun training at the police acedemy. That goes to show how much of all that has gone out the window after I left law enforcement but I should have remembered all of that. Thanks for reminding me though, and it just so happens that I'm camping out with some buddies from the local muzzle loader club the day before our monthly match this weekend so I can have them watch me shoot and do the 5 shot loaded/not loaded drill as well.The point of this is, the pard does not actually load anything 2 of the 5 rounds. You not being aware of which ones, should have your normal shooting practice. Your pard can watch you for flinching, plus you will notice perhaps if you are as well.
Thanks for all the advice from everyone else too, I'll let you know what happens and hopefully my groups will get as small as when I'm shooting my caplock.