I have a Porter Cable 7518 3 1/4 router mounted in my table. Sweet
machine. Last night I had just changed bits and was raising the bit
to final height when I accidently hit the On switch. Even with the
soft-start feature, the starting torque wrenched the motor from my
hands and started unscrewing it from the base. And it happened FAST.
I just managed to stop it before it came free of the base and fell to
the floor with a spinning bit. I shudder to think of the
possibilities. Now I know why they say always UNPLUG the tool before
making adjustments. But how many of us really do that? Unplugging is
a hassle, but I'll at least install a switch in the incoming line that
I can turn off.

DonkeyHody