Bearing in mind most airsoft SMGs can fire at rates above their real-steel counterparts, If a MOSFET controller could be programmed to fire in "semi-auto" mode (like rapid trigger-pumping)at the correct auto rate, would that cause damage to the mechanism?
I know there are some controllers that reduce the motor speed to do this, but IMO, the stopped shots would sound better than a slow auto. Particularly so for guns like M3s which have a distinctivly low rate.
Since a mosfet controller doesn't actually use the mechanical semi auto features of the aeg and also doesn't actually use the switch contacts, then I can't see any real reason why this shouldn't be okay. I don't see why it would do any more damage than normal full-auto.
Gut feeling is that the stop/start may be a problem for the motor/piston assembly, all that building up then breaking of inertia rather than letting it ruin at its natural rate. But would that result in something noticable regarding reliability degrading or shortend life of the mechanism? I suspect it would come down to the proprties of the materials used to make the mechanisim more than anything else.
To the tune of "Mademoiselle from Armentières"
Napoleons army ran away, As you do
The guard stood firm for Frances Pride, As you do
They said the guard will stand and die
But we heard what their Colonel cried
It wasn't pretty I tell you.
Resistance is fertile
Yeah, the stop-start is my main concern.