The way I see it is that it is premature cocking only because there is an external hammer. If you didn't see a hammer, it would be cocked anyway.
that is true but how do you shoot your nef..and every one else
plus most un expsed hammers have an auto safety
and are ALWAYS operated that way
i would use clints tecneque if i were competing in a game to when or something
other than that it is just a dangerous practice
if you really need to sacrifice safety for tactics get a more suitable gun
or try some other tactic like running......with the hammer down
i like watching that guy but they are to into tactics than real world safety
like carrying an auto when a revolver is so save