Flinx,
Good catch on the pics! I had checked equipped last week and he didn't have the SHOT review up yet and I had not been able to get back there. VERY cool.... Like the purple, and have two wwaaayyyy backordered!
I will scan you a comparison between the Delica (pink, frn clip, Mini-Grip 555s and the Calypso Jr. this afternoon sometime. I do not have an easy way of posting it here, but I will email it to you, or if anybody wants to host it I will send it to them so everybody can see.
Basically, the Mini-Grip and the Delica are very close in overall size open. The Mini-grip is VERY slightly shorter when closed, but not enough to make any real difference. Opening the Mini-Grip is easier for me; I can 'fire' the blade open with my thumb which is something that I cannot do with the Delica. The Mini-Grip feels slightly heavier, but not any real difference clipped to Dockers or jeans. The Mini-Grip feels much more secure in my hand due to the multitude of grooves and ridges.
The blades are very very close in overall length, but the Mini-Grip as a fraction more actually cutting edge. I prefer the Mini-Grip sheepsfoot blade profile to the very pointy blade of the Delica for general cutting. It feels like I have a little more control over the tip of the Mini-Grip for detail cutting and it seems to cut cardboard better when I push cut the tip vs the older hollow ground Delica that I have here (this may or may not be the case with the newer flat-ground Delicas). The Delica stabs into cardboard and such much easier (as you would expect) but since I slice much more than I stick with a knife this size this is not a big advantage to me.
I have not played with one of the 556 with the MDP blade, but I suspect it will be quite nice if you like pointier blades and thumb studs.
I no longer have a 3" CS Voyager, so I cannot really make a decent comparison between the two. Based on what I remember from the one that I had but traded off, the Mini-Grip's handle seems to offer a much more secure and easy to index grip.
Danny