rigid foam under tank

[Bodasifa]

I have just had my stand finished and powder coated and when i put the tank on found several imperfections. My question is will the rigid foam that you typically find at home depot compress enough to fill in these small imperfections. The stand is made from 1-1/2" square steel tubing and it seem s to be high on 2 corners. The foam only has to compress maybe 1/16th of an inch. will the foam compress enough on the corners to make up the diffence