This pretty much lines up with what I have heard. Make the piston as short as you can without jeopardizing stability. I also don't want a piston with oil rail supports so I won't push the compression height down to 1.150 like he suggests as optimal. I think Autotech starts including rail supports around 1.200 CD on their shelf pistons and my combination of 6.400/3.79 gives me a bit of margin around 1.275 +/- a few tenths depending on the decking.