There is lines left from the mill I think on the hk. So the surface isn't 100% smooth. Maybe just take a 1200grit paper and lap it with your hand so it don't get flat but it gets shiny? Would that be a good idea? Just to get down the "reffels" or how I should describe it?

But so far? A non lapped HK3.0 with a lapped cpu is best?!