I like the design of this set but I passed on R1 because there was no minimum 4-key 40s support, let alone the 6-key or a 40s kit that I have come to appreciate in other Keykobo sets. Please consider adding 40s support into R2, into the base or in one of the child kits if you would like to pick up some more buyers.
Given the timing of most (if not all) KKB ICs, such feedback is usually already far too late for consideration but I have to at least try. Thanks!