Well spotted. That's new, AFAIK. Do they have instructions for all their kits, or just the 5e3? Do these instructions relate to the Stewmac set? Maybe Mojo agreed to sell their amps thru Stewmac if Stewmac would work up an instruction set? Etc. The key thing will be to see if the instructions are solid and safe. I strongly support Mojo -- but I don't build strictly to their layouts.