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Operated at high speed -- and cutting relatively thin stock -- the stuff does
in fact cut like butter, with a very attractive displace of sparks, too :-)
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As a Tool&Die shop owner for many years, I have friction-sawed a lot of
different materials and it is the only way to go when cutting stainless steel.

Your post was excellent and I would like to add one thing;
ASAP Aircraft Co., years ago, had some small, flat parts laser cut. Later, the
edges of the parts began showing small cracks caused by the intense heat of the
laser and they stopped using that method of cutting.
Friction sawing also produces heat. In fact, it melts the material.
I dont know if this would be a problem or not but I think I would normalize the
parts. Just to be on the safe side.

Warren