You can put six in that one if it came with five; using the .061 red eagles. The oems are thicker and grooved because they can't take the heat. Yes another steel. They sell five thick ones for non-thinkers.
Just ran out to the garage and checked, looks like 4 and 4 in the direct and forward drums now. Thanks for the info. I'll just order all .061's for both drums, and an extra steel.