I don't know about that rating on the shunt. I did some tests, albeit not scientific, but what I did find is that when I hooked the dyno leads directly to the shunt the motors had the best results on the dyno. Now when I just tucked it under the brush hood where the spring rides the numbers where not as good. Then I went ahead and soldered the shunt to the hoods and the good numbers had returned. Take it for what it is worth. Everybody has his or her own preferences.
There is great need for a sarcasm font.
You never know when it will strike, but there comes a moment at work when you know that you just aren't going to do anything productive for the rest of the day.
Sometimes I post just to look at my avatar.