The idea is not for the material to be used to fill large gaps or to level a faulty stand. The stand needs to be as level and as flat as possible to begin with. The cork is used to make up for any tiny imperfections (and there are these imperfections on any stand) that may go unnoticed. As far as the look, I agree. Foam looks like crap IMO and I hide the cork with a piece of moulding. The integrity is not an issue with cork but it is with foam IMO. Of course I may not be familiar with the proper type of foam. Just my 2 cents.The only way for any foam/cork to work to fill a gap is to have that foam/cork at least 10 times thicker than the gaps width. Not a very good look, and then you have just lost your integrity of stability.
I called Tenecor and they told me if it is 1/8" or smaller to just fill it up and the weight will flaten the plywood. I just got home and its 1/8". I don't think that plywood is flat to begin with anyway.
What do you think?
If thats what they said hold them to their word..............fill it and lets see..........and you would be hard pressed to find perfectly flat plywood to start with...........worst case............empty it and shim!!!!!!