There have been some improvements however as a result of this change. The gear changes are more consistent and there is not longer any “play” in the mechanism when I have selected fist gear. Previously, I would get third gear in either second or third gear position and that is no longer the case. I now get second gear in first and second gear position and third in third gear position. Also, the gears would sometimes spontaneously change and that no longer happens.
The adjustment is perfect, and I have tried different positions of the indicator in the adjustment window to see if it made any difference but it does not.At the suggestion of some readers on here I had considered getting an old vintage thumb shifter and adapting it but discarded that idea as it seemed there was no knowing whether they would be compatible.
The only thing I can think is that there is a problem with the hub itself since the shifter works and so does the cable and the indicator in the window. I see the bike shop about this again next week.