Now I'm looking for a replacement but the pots I ordered directly from the G&L site are quite different from the ones that came stock in my guitar: the shaft is longer and the rotation is not as smooth and fast as the original volume pot. These pots are labelled CTS, but the originals are only identified only with the value and the words, "MADE IN JAPAN."
The closest thing I can find so far are some pots made by Fernandes (an ubiquitous brand here in Japan.)

Any other information about the pots G&L used in early 90s guitars and/or other recommendations for replacements would be greatly appreciated!