Buying Hint
The fault most likely to develop in a hard enameled line is that the finish will chip or " knuckle." Therefore in buying a line of this kind examine its finish carefully, rejecting those that show rough spots, " bubbles " or other indications of imperfect finish. Take an inch or two and double it with a hard pinch. If the enamel is weak it will crack and produce a white powder or a light spot.
Soft Enamel Lines
With the increased popularity of dry fly fishing in England British makers produced a line of softer finish and more flexibility than the hard enameled which is known generally as the vacuum dressed line.