[KMag]

Any idea why, if the parts don't add to 100, they don't reduce the fraction in the solder name from 66/44 to 3/2? Un-reduced portions are handy if they're percentages, but if they're not going to be percentages, why not reduce the fraction?

[nerdponx]

Might be a typo? Usually you have 60/40 and 63/37.

[jiveturkey]

because you're comparing it to 63/37. it's much easier to grok the comparison when you use the same "units".

in racing, they say to drive 10/10ths. not 1's. for the same reason.

[Dylan16807]

If they don't add up to 100, and neither of the numbers matches the default, they're not the same units.