There seems to be a fair consensus that angle is the value that's important.
Given that this is the digital age...the Lowell gauge was a great idea for its time, but ,
for $39 from any mail order woodworking house, the Wixey digital angle
gauge will get you there with an accuracy or 1/10th degree... less the interpreting
and fussing that the Lowell gauge requires. Its very small, has strong magnets
to assist holding itself or a secondary steel fixture in place, is accurately
calibrated (as confirmed by machinist angle gauges), cheap and readily available.
Zero it out on the speaking length, move it to the back scale and read the angle.
Jim I
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