It's very strange because when I glazed the stone with the lower grade wet/dry here was a noticable smoothness relative to its normal state. However now the stone feels like it should, but is no longer effective. I did try to go back to my normal method of lapping with 600 with no luck. I'll continue to experiment tomorrow ad report back. Perhaps the flattening stone was shipped out not flat, in which case I'll need to lap that with 220....
Thanks guys for the input, I'll let you know what happens.