Yes, I am very much interested in learning how to hone. I just would like to find a more affordable way to do it.

So, if paste is not a finisher, what is it for?

If I buy a brand new razor, like a Dovo, should I ever need anything coarser than 6K (provided I don't nick it) ?

I don't mind experimenting up front. I am using a double edge right now and am not in a very big rush to switch to a straight razor.
And I don't mind using some extra elbow grease.

Thanks.