I'm interested in buying a DMT for lapping a Belgian Coticule (which I also haven't bought yet.....) but the 8" models are really expensive over here. The 6" ones are affordable however.

Will I have any problems using the smaller stone to lap?

Also, I think it might be easier to do the lapping upside down to how it is shown in the wiki, ie. coticule on the bottom, lapping stone being moved in circular motions from the top. Would that work OK?

Forgive the noobish questions pls

Cheers.