Michigan Escapee
ArboristSite Operative
Brad's engines often hold very good rpm under load - unlike some others. Several guys who make fast saws have made use of the audio spectrum analyzer. Others wonder how their saws are performing under load, then make ignorant comments like yours.
Hmm, I dunno. What about horizontal elongation over time due to the removed metal? Even half a millimeter is enough to distort your grain boundaries, and generate cracks causing catastrophic failure. It's explained with perfect simplicity in this paper. http://ir.lib.uwo.ca/cgi/viewcontent.cgi?article=2182&context=etd