The arm tube on my OL seems to have the best sound with the back of the armtube lower than the front. But, I like to play with it, so it varies a lot.
I'd suggest playing with it for the best sound. You can measure all day, but in the end it's the sound that counts!
I'd suggest playing with it for the best sound. You can measure all day, but in the end it's the sound that counts!