I do wish Dubro would go more Metric. As a fairly new hobbyist I find the Imperial measurements way too confusing. Fitting .047 or .062 wire to a 2-56 or 4-40 coupler, ball-links, servo horns, control horns, etc. is so much more confusing than fitting a 2mm or 3mm wire to a 2mm or 3mm coupler, ball-links, servo horns, control horns, or adapters. I also am never sure if a coupler is hollow and can be fitted with a coupler or is solid inside since you seldom show the ends. Why not sell us a tool that can put threads on non-threaded 2mm or 3mm rods so we can easily make our own control rods without soldering adapters or couplers? Yes, I understand 2 CW or CCW threaded ends on the same rod will unscrew itself. But give us the tools to make both CW and CCW threaded rods or make a video showing how the rod can be locked in so no unthreading will happen, i.e. lock nuts, thread lock, etc. BTW I do find your videos very informative.