Ok, after lapping and burnishing the stone, I took a vintage with a dodgy edge back to the bevel, went through the stones and finished on the white ark. Early days...but it is silky smooth and a bit faster than my black ark which is labourisly slow, but different blades are better on some stones than others. Not stropped it yet but it will be fine, I maybe use it tonight...but right now I'm knackered, so maybe tomorrow.
Bob.