Should I styrofoam?

[Old Guy]

With all the tanks that having been giving out lately, with and without styrofoam underneath, I'm confused whether to use styrofoam or not. I currently have 3 tanks with styrofoam underneath with no problems but I do know someone whos 90gal did break. I am about to change out my reef to a bigger tank and am leaning towards the no foam route using shims to square everthing.

Any opinions, consenses or experiences would be appreciated.

Jeff