while I acknowledge that "environment" plats a part, the Sticky Nob issue has been a NIGHTMARE for Artirura.
I just scrubbed my minibrute nobs down in DNAT (outside of course) and they came perfectly clean.
I'll just have to find nice non coated nobs to order.
Just to chip in.
This is an industry wide problem.
The type of 'soft touch' or 'rubberized' plastics used on a lot of knobs these days (as well in teh unit bodies of consumer electronics like cameras and remote controls) has a really short shelf life before it starts to break down and often become sticky and unpleasant.
I can confirm for instance that Arturia suffers with it as i recently had to source a complete set of knobs and slider caps for my MatrixBrute for this very reason. Luckily Arturia were good enough to supply these free based on the amount of products i had registered with them.
I took delivery of a used Pro 3 SE today (i had to let my original go to help fund a new mac).
The pitch and mod wheels on this Pro 3 are also horribly sticky to the touch.
Bit more fiddly to clean the coating off on wheels.
Hopefully they come clean.
I've inquired with support if they can supply new wheels in the meanwhile.