Not that round. Round enough to be comfortable in hard use, but not take up insane amounts of pocket space, but a little more than say a Spyderco Delica. Like the handle of an Opinel, but if you have ever seen an MAM Opinel like folder, you can flatten the sides, or just maybe the side with the pocket clip. It is just important that the top and bottom of the handle be radiused, along with a palm swell. I can post photos of what I am talking about if that would help. The knife should be pocket friendly, but that comes second to hard use ergonomics. The basic concept is a MAM, Opinel, or Mora but with an opening hole and pocket clip. To be honest, the handle can be flat for all I care. Flat like the Emerson CQC-8. In fact like a Spyderco Para 2, or Spyderco Military, but a little more tuned for hard use/hard cutting. Basically, I want a Spyderco Police or Benchmade AFCK mixed with and Opinel/Mora/MAM.
PS. I would prefer "0.010 behind the edge, but if "0.015 is what only can be done in mass production with a full height hollow, I'd be happy. Basically pushing the limits of mass production knife making, which I know zilch about. After going to Blade Show West and seeing what can be done in a production, mid-tech, and custom knives, I think the concept should be possible with a few tweaks.