They work well but are not ideal. An EDC knife is a compromise from the git go. A knife to do a number of different things fairly well so I do not expect them to behave like a kitchen knife. The Super Blue Delica is a great parer. That combo works well for me but i'm sure there is better. Catcherman is the only knife over 3 inches and 2mm or less. Never used one though. People love them. There are multiple threads lately talking about a large folder with thin stock. Google folding fillet knife and you will find some nice options.
http://www.spyderco.com/forums/showthre ... by-MarcinS
http://www.spyderco.com/forums/showthre ... Any-Chance
There is obvious interest in a larger knife with thinner stock mainly for this purpose.
I do suggest a non spydie in one of these but don't usually like to on here.
I will drag my dead horse out. I would love a Police3 in Super Blue with 2mm stock. You could leave the tang at 3mm and just grind the blade down to 2.5mm or better 2mm. Or an all new knife sharing a lot of those quailties.
I will be buying a Super Blue Stretch but it is still not my dream. Thin is key. All kitchen knives are thin. (well not cleavers but most all)