Some have also filed off the front lip on the Tupperware base plate. Kind of round and smooth a bit.
Seems like there is a metal base plate but I don't have anything to back that up with.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."