I'd have to agree on the Carnivore as a KFF alternative. After carrying and training with my CRK&T KFF for a few months I found a few minor faults (in my case) that convinced me to switch BACK to the carnivore I carried before. The two knives have a similar profile and attitude, although the Carnivore is the slightly smaller of the two. Mainly, I switched because (1) the zytel handle on the KFF is too smooth/slippery and (2) the KFF's handle felt just a little too large for my puny hands. The Carnivore corrects this with G10 and a slightly smaller handle. Basically, I felt a more secure grip with the Carnivore. The locks didn't really matter, although the REKAT's rolling lock has the better reputation. What I miss about the KFF is the tip-down carry, slightly larger blade, and better price.