I'll throw one other situation out there, no disrespect intended to our learned colleagues.
Some of us carry a firearm on duty that will not allow the use of the ejection port for a clearance drill. To keep as much of the training transferrable to the 1911 platrorm as possible, I use my sights for one handed drills for whatever semi-auto I may go armed with.
BTW, I've never played with an airsoft.
