In case it's not clear, the "kit" does seem to fix the problem. I had mine fixed as described in TSB 42 during it's warranty period, and I've never had another fault (been 3 or so years since the fix.) I later had to replace my cable and plug when it went bad, and had them set my unit back to 30a. I've often wondered how long it will last, but it shows no signs of quitting. I do occasionally inspect for signs of heating, but so far, knock on wood, it's been OK.
I have a utility grade meter attached to the Blink that just turned 20 MWh, and I used the Blink for a couple of years before I got the meter !