A-727 small metal debris in pan - rebuild?

None of that other stuff matters whatsoever. Transs are a whole different breed and I see guys spend $50k on a car and slap in a used trans. If they went first class on the trans, why does it shift like that? Rhetorical question..They didn't. BUT, I was just trying to find out if it shifts into third at under 20 mph at Wide Open Throttle. Shift it manually from second to third with the gas pedal floored. It shouldn't shift into third at 20 mph floored; even manually shifted.