Grips are @ 1.2" (30.5mm) and maybe varies about .01" depending on where you measure.
I find them to have a more aggressive grip than the Hogue. While Hogue's customer service is top notch, I'll probably get more VZ just for the design.
The stainless is a "fun gun" after the modifications, but the single action isn't as nice as the Shadow (even with some coils removed, you can feel the plunger being displaced). I wish they made the Shadow in stainless. Then I could just buff or blast when the surface got roughed up.