I can't say I really understand the design of the Becker line. The Necker looks about perfect. The BK7 and BK9 are both 1/8th of an inch but with fairly massive blades. The BK2 is only 5" long but a full 1/4". It seems to me the longer knifes would have the thicker blades. Also, why is the thickest blade the one with the most pronounced saber grind? It seems to me that the BK2 would be a great candidate for a full flat grind as it is the shortest of these three blades, and therefore the strongest and it is also the thickest. I just don't get it.