This is something that you can't do too much of. And to revert back to the original complaint, firefights are made up of complex dynamic situations in the manner of which Clausewitz said "makes the easiest of things so difficult."
Until a shooter can exhaust his fastest times in clearing malfunctions and reloading his weapon, all other drills are relative to the probability for them to present themselves. Malfunctions and reloads have a 100% rate of occurring. I'm sure Bob would agree with this, but the reason that his Advanced class is named so is because it is the advanced applications of basic fundamentals.