Is a overhand runup double duke possible?

Well I'm sure its possible but is it extremly difficult? IE takes way to long.

Culling and stacking, or just stacking? How many cards involved? Obviously it's more difficult to cull and stacking two four of a kind hands than two two of a kind hands. Stacking overhand is quick and easy if you just use a milk build. In theory there is no reason why an overhand double duke should take long (four shuffle or less), but that assumes you're able to effectively cull the cards and position them systematically.

Just stacking. I can do it when I riffle shuffel. I havent looked into overhand shuffles and was just wondering a good method.