JCJ, I think it is a great gadget.
However, it appears the new stems would weight more than the stock stems. Since wheel/tire combos are balanced to ounces, is it safe to assume the new stems weigh several ounces more than what was on before? Maybe the tires should have been balanced, but there was a lazy, non-profit oriented person behind the counter.
I ask this in all honesty and not sarcasm because it is the same type of thing I do not need that I may buy just to have
Black Lingenfelter Lux