I'm the opposite, I find the Cooks Knife a bit too long. I have most of the kitchen knives Spyderco has offered over the years. They're all I use in my kitchen, but the one I use 95% of the time has a 4" blade. The only large one I use with any regularity is the Santoku. I purchased the Cook's Knife, but I've been spoiled by the Kitchen Sharps series. Compared to the K04 Large Utility, I find the Cooks Knife blade thicker and its handle slippery and less comfortable to hold.
I just wish there was some way Spyderco could get the folks in Japan who make the Kitchen Sharps for them to make a "high end" version with full tang blades and nicer scale material, but with exactly the same steel, thicknesses and handle shape as the originals.