Skoorb

Also prefer pictures/text in most cases to video. Video is slower as I have to watch the whole thing, not to mention bandwidth issues sometimes.

You signed a contract that had penalties and things clearly stated as to what would happen if you forfeit it. The law is clear and extensive on this. If you are willing to absorb and accept this and you think it makes sense, by all means. It's no different really than paying Verizon a penalty for getting out of a cell phone contract early. The economy has become such a farce anyway.

After watching this vid a little while ago I used the sharpened putty knife to do my basement in November going through a few dozen 2" sheets of extruded foam and the approach works very well. I'd cut on the concrete floor using a thin piece of plywood as the straight edge. I was surprised to find such a clear "grain" in the foam; it can be sliced up very easily length-wise but across the foam it's always trickier.

Anyway, the sharper the knife the better. I used a cheap harbor freight cutoff wheel tool to grind down one edge into a pretty sharp blade. Also, to avoid ripping the top when cutting across, score a thin trench first, then deeper on each pass.

I cut several sheets with a circular saw before this and the sharp putty knife is cleaner (no dust), quieter, and much faster, not to mention more accurate, too. I cannot imagine a better way to do it, thanks!