I don't know that I'd have done it that way and I wish him well BUT in a similar vein...
Around 1980 a brother stopped in with a badly smoking shovelhead. The rings were locked tight, no doubt because of too much timing and too much crap gas. He didn't have $$ to buy new parts so we dug the rings out of the pistons and filed the piston ring lands with a mill bastard until the rings spun around freely. A new set of rings, a quick hone and he was back on the road. Heard from him a week or so later, he'd made it back to SoCal without a hitch.
Sometimes the light's all shining on me, other times I can barely see...