Ok I did a comparison...
Wearing the same top and...
1. Left - 20.5 inches which is clearly too long, but look what happens after wearing...
2. Middle - 18 inches maybe? This is after approx 2 hours of wearing and no adjustments
3. Right - 18.5 inches. This is just the usual extended length without my extra extension and without twisting
View attachment 5068933
So I would have been fine with the usual extension but unfortunately the twisting results in the necklace length being really short. Hence the extra extension that I need unless I am fine to constantly untwist a chokey chain (and I’m not!!).