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An INFI blade at, say, 3/16" thickness will majorly outperform the same blade made from 1095 at 3/16, just like a 1/2 inch thick INFI blade will outperform a 1/2 inch thick 1095 blade.
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Try taking a Cold Steel blade of similar size, but a "thinner, more efficient" thickness, and doing what a certain Camp Tramp did..... <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />
The above statement gets to my entire point. You state that INFI is better than other steels at any given thickness, and presumably hardness, profile, length etc. The RTAK has a reputation as being a very good and reliable hard use knife. If INFI is better in all the criteria you have stated, it should be able to made just as thin, or thick, as the RTAK and be a much better knife. I personally do not understand the desire to make a thicker knife when a thinner knife is more efficient and there are no apparent drawbacks by doing it (as seen by the success of the Skinny Ash).
I have been editing my posts, as it is hard for me to reply to the multi-quoting you use in the small window I have to type.