I have added a partition wall in an existing space (next to kitchen). I will be adding one outlet extending the existing 20 amp circuit. Also, I want to have one of these outlets switched with the overhead light circuit. I am wondering if there is a problem with cutting the "hot" tab on the side of the receptacle and having the top outlet switched 15 amp, the bottom 20 amp? My concern would be if someone plugged in a surge protector (like below) or other device that gangs the upper and lower outlets. (I don't plan to do this here, but I use two such devices in other rooms.) If the two circuits are on opposite sides of the phase it could get ugly if one of these is plugged in.