Wonderful ball for dryer.
Currently remade with a slight cover tweak by AMF called the Valor/P.
Slightly strengthened and then called the Valor/P tour.
When the conditions are right, dryer with pretty strong backends it is a great ball. Friend had an 823 with his a few years ago. Plus it looks good.
The newer versions(Valor) from AMF have a little stronger cover(light particle) for today's oiler conditions. Valor P tour strenghtened flair of core slightly.
I think Pat Healey won his first tournament on the PBA tour with a Valor while he was with AMF I think on Pattern A. Medium length flying backends.
He had sanded his a little!
Very good ball!
rEgards,
Luckylefty
PS low flare like .23 and Valor.23 and Valor P .30.