Brian,

If your bevel cuts are generally the same (perhaps 45 degrees), would making an accurate fence be helpful? Perhaps something like this?

Once you cut the guide to the correct angle for how your saw rides the fence, you could align your mark exactly and adjust your blade accurately off the guide. ??? Just a thought.

I posted this, then reviewed it before my time was up and I’m not certain if you’d have enough support to keep your saw angle correct once the excess was cut away to make the guide fit your saw. Perhaps if your used 1/4" hardboard for the bottom guide it could work. I’m not certain how accurate your alignment would be. It would also depend on the configuration of your saw’s base plate and whether it is a right- or left-handed saw.

So maybe it was just a dumb idea on my part . . . but what do you expect from a woman? :-)

L/W

“Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” Benjamin Franklin