I realize it doesn't affect sound, but it does make it alot easier to remember, and replicate from/to other devices. A 0..150 filter cutoff frequency doesn't have a real-world correlation, and it's not clear wether it's a linear scale or not. Envelope times are harder to set when they're not defined in actual fractional seconds. Modulation should measure from 0..1 (instead of 0..100) to make planning modulations out in your head easier (it's a great hobby, try it), particularly when using MMixers.
etc etc, you get the point.
I just think it would be a sweet usability addition/change in Zebra and bring it closer to the user's brain.
Enjoy your vacation, Urs! Remember, a snorkle is about half a meter long. Don't try to chase the shark, don't arm-wrestle the octopus to represent mammals, and don't touch the jellyfish with your typing-fingers.
-d

