finally did it!!!

[Chas]

Check with your dealer - certain models need a slab, others can work with other surfaces.

The thing you want is some combination of things which will simply not change over time.

[Brewman]

The thing you want is some combination of things which will simply not change over time.

Like Needsaspa's quest?    
Brewman

[Chas]

The thing you want is some combination of things which will simply not change over time.

Do you ever write things, and then go back later to look at them, only to wonder WHAT on EARTH you were trying to say???

I think I meant: be sure it won't settle or sag over the years.