after much cursing and gnashing of teeth, somehow got three long stringers all roughly the same, to within a shim and a dab of glue here and there.
anyway, the book i go by says to "split the line" with the skill saw.
i find it impossible to use the first stringer as a template. somehow to cut always gets messed up bigtime.
after scribing the template onto the second piece, it's like, "now do i split the line again, or do i need to be on the far side of it, and LEAVE the line?
anyway, this never works, whichever way i do it. i have to go back with skillsaw/jigsaw, and try to clean up lines, and then i just butcher it.
isn't there a way to cut three 2X stringers at the same time, precisely? this crap drives me nuts.
i have a small mountain of destroyed stringers...
by the way, is Spruce OK to use for stringers? that's what i have now. i find them much cleaner and straighter than fir, although i just had a piece of a stringer snap off sideways on me with the spruce. not sure...