Tricks Tricks:
For something so easy to follow, lots of people seem to not understand this.

PFFFFT that one is old school, this is the one we are taught now, and I'm sure advocated by some on this forum.

The thing about the top wheel is that it is not a straight forward as it might seem and this is basically due to the one ring called perception. Whatever the officers perception was justifies what he does. Whose to say for sure what his perception was while standing in his shoes at the time and place of an incident when having to make a split second choice? Pretty hard, so you just write in "I perceived blah blah blah and therefore jumped to using my Asp Baton." Officer gets the benefit of the doubt when it comes to his perception and it needs to be this way, unless its glaring obvious to the contrary, such as the airport thing.
At any rate we follow the taser use recommendations that have been mentioned here except the "avoid chest shots" one (its dumb and unsafe for officers IMO due to the level of perp escalation it should be used at) and think they are all reasonable.