Maybe it isn't such a good idea for these copies to be this good?
Jack Spirko (TheSurvivalPodcast.com) had a point about practicing with a quality (weight, functionality) airsoft in the same model as the firearm you use. You can practice until the draw, safety and trigger, etc, are completely ingrained as well as setting up HD scenarios in a 'stage' in your garage -- and have your buddy sneaking around in a ski mask. Properly dressed, you both can practice right up to the point of pulling triggers. How about a 'wrestling for control' scenario -- with a loaded (airsoft) gun?
MrB