1. LGM, thanks for the information as far as the Tessa is concerned.
2. As far as the name of the new knife, I cannot fully agree with the name "B-TACT", becouse according to dictionaries: TACT (or simply: tact) = Acute sensitivity to what is proper and appropriate in dealing with others, including the ability to speak or act without offending, AS WELL AS = (Archaic) The sense of touch.
The name, according to my opinion, has to 1. characterize the maker, 2. indicate the design, 3. indicate the length of the blade. So: B-C7 (from "Bryan-Cutter 7 inch"), maybe.... Note: please mention B-C7, and not B.C. (coming from "before Christ").