Next up would be sidestepping the cutting,somewhat.....with the use of grinding equipment.The "grinding" here is usually called sanding.......In any case we're grinding the mitre, achieving precision angles not possible in any cutting operation. I'll spare the details .....
BW, I know you well enough to know what you're talkin' 'bout, but the folks out here/there in WWT have no clue when you refer to "grinding" on wood..
We all sand
over here, and to throw a different term at it just might add some confusion. I know you sand/grind composites, laminates and other different materials to close tolerances required in "machining" operations. Is that the reason... a closer tolerance, you call it grinding?
Everything I grind on shoots out sparks....just sayin'
If I used a grinding wheel on wood, I'd just gum it up.
Sand wood, you get dust. Grind metal, you get sparks.
Call it what you choose, but some of us are easily confused....
I have one of those old imbedded grit sanding discs for my table saw. I imagine if I used a properly set miter guage, I could get a decent angle on a piece of wood. However, when I sand an endgrain, the wood burns and the pores fill up and get hot and that won't give a good glue bond. I get the same results with sanding discs, unless it's a real coarse grit.
Sawing, as you suggest, with a stiffer, smaller blade may give much better results because the blade plate can't flex as much especially when just shavin' off a tad on the end to get it right on. That works for me. Sanding, not so much.