wolf I dont' get your point. I can't tell if you think its a good idea or bad?
The fact that the trigger, bolt release, mag release and selector/safety all work identically to the real thing helps to build muscle memory.
This is in contrast to the colt, ruger, mosberg, and all the others I know where some aspect of these controls is vastly different.
I don't own an M&P but borrowed one for an appleseed shoot and came away impressed.
I have a conversion kit personally and the accuracy is inferior to the M&P or a dedicated upper. But the conversion kid was cheap and allows me to practice the quick, close type of shooting I've been doing lately. (bowling pins)
Don