Attemping to cut a 6" bar rail molding, with a 8" compound sliding mitre saw. Since molding sits 5"+ when in bar molding position, Unable to cut with a straight 67 1/2 to handle octogonal 135 degree out side corners of the bar. Would like to lay it flat and cut with compound angles. Maybe your spread sheet will help. HAve been very successful with stadard Crown molding, ie using cm markings on Sears Saw. OPlease help Thanks