My limited experience in flooring would tell me to ask advice at a true flooring store and not a box store. Johnny might be the flooring guy today but last week he may been mixing paint.........

There has been some recent discussion in the Coretec thread about Smartcore since they're similar products. Surprising that HD recommended it, I was under the impression it was sold exclusively at Lowes.

My main point was there is normally never only one way to do anything, especially when that advice comes from a box store.