How thick is the handle on the 1620/1620ST? The photo on Kershaw's site is 2 dimensional, so there's no way to see this. Its handle appears to be, perhaps, thicker than the other models of the Scallion (which are all aluminum), but can someone verify it. I prefer a thicker handle, and blades with the thinner, metal handles feel a bit, well, thin in my hand. TIA.