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Thanks for the update. I also have renewed anxiety about my hub because I had a customer come into the shop with the same bike as mine. Their hub was bone dry and the shifting also felt better than mine.
Some on this forum have commented that their rear skewers do not show any oil like mine does. So, there clearly are differences. But, when Thorn and Rohloff say that leakage is common and you do not need to worry about it, I am not going to worry about it.
I made the comment above about my vintage Triumph motorcycles, but those had two oil pumps, one pumped oil out of the crankcase and put it into the oil tank, the other pumped oil from the oil tank to maintain oil pressure to the bearings within the engine. In that case, if it stopped leaking, that meant no oil pressure, and that was a problem.
The Rohloff just has some oil in the bottom of a hub, so that rotating hubs will continue to wash the internal parts with oil, if you are low on oil it should not be a great problem. And if it leaks at a slower rate later, that should not be a problem either.
Feel on shifting, I am sure there are changes in the hub over time and the type of shifting mechanism used. I have only ridden my Rohloff, have never ridden another one. So, I can't compare. I am in USA and Rohloff hubs are very rare in USA. A neighbor is a bike mechanic and he has told me that my Rohloff is the only one he has ever seen even though he is in a bike shop all day, five days a week.