I can see it would work for certain conditions. At some point, depending on measurements, the corners of the board would not touch the clips on the guides.
When i first got involved in construction, i had a neighbor who was a plumber. he had found out i was handy (15 years old at the time) and needed help on a job that he was too big (around the middle) to squeeze into. We had to put in new piping into a very shallow crawlspace. There were some angles we had to bend pipes around that were too fine an angle for any fittings to conform and the black pipe was too hard (brittle) to bend without causing splitting. It was my first introduction to a thread die cutting tool and I suggested we try cutting the threads at a slight angle. He had not tried that and told me it would not work as the dies were not made that way. Well, we ended up trying it and the offset provided with those "wobble threads" turned out to be just what was needed to make the slight bend that was needed. The plumber kidded me long years after. he used to call me "wobbley" in memory of those wobble threads I had dreamed up. Of course, i could just as well have called him "wobbley" for a somewhat different reason. Once i had my drivers license, his wife used to call me up at odd hours of the nite asking me to make the rounds and find her husband and bring him home. That was due to a different plumbing situation.
Yes, I can believe you can cut at an angle using the parallel guides. Like bending those pipes with the threading dies, there are limitations. But within certain boundaries, it works. [scratch chin]
Tinker
