I just found out that the 2 rubber gaskets on the mouthpiece are VERY important.
The inner gasket had broken, and I put the mouthpiece back in the Pico (without the broken gasket)...
The sensitivity of the Pico then went out of wack.
So... the lesson, be careful with the two gaskets in the mouthpiece.
(And Eigenlabs guys, are the rubber gaskets a standardized size i can get at a
hardware store? If not, how can I get my hands on replacements? Thanks!)
-Matt Z