Steve,
On Page 13 of the Excalibur, it states that by turning the black knob at the rear of the saw, you can raise the blade by up to 1", allowing you to use another portion of the saw blade. Have you ever tried this? I just adjusted the lower arm to parallel, and was wondering if this is a viable option to get more use out of the blade.
Thanks for the help,
Dr. Jeff Popa