Besides the sirupates, as mentioned, seems to be that also Kobras are generally the lightest. But we are all different. What's light for one, maybe too heavy for another. I have come to learn what's the lightest for me. In a full size kukri it's gotta be less than 27 ounces. Anything heavier than that is a wee much. Also, my preferences are also towards full tang (M43s, Chiruwa AKs).