Thank you Carl,
I find Bosch thin knife blades burn up rather quickly cutting Homosote at any reasonable speed. The Homosote is rather dense, so within 5 feet or so the blade starts to warp from the heat and curls to one side giving a crazy edge. If you grind a knife edge on a worn out saw blade it can last a bit longer because it is thicker and resists the heat better.
5 or 6 passes with a super thin Airway #6 knife blade makes production work quick and clean in my experience. We even use it for hand cutting most plywood underlayments.
Cutting with a vacuum equipped 32 tooth metal blade has given me the best saw approach. I used that combo for cutting around the round columns. Both for the plywood and Homosote.
