Generation Fipple Vertical Line
I just found a few of my Generation whistles from about 20 years ago that I played around on as a kid. Compared to new ones, these have a vertical line on the fipple. Does anyone know why those do and the new ones don’t? Did this slight change in fipple make any impact on the sound? I haven’t got any new ones to play, just noticed it while seeing some photos online of the new ones that they seem rounded/smooth.