Spring sound is normal, the drifting was a problem with the deadzone setting, think @aTc mentioned a fix on IRC. not sure if it's just an apt upgrade fix or something that may require a full re-image. I tagged him, so maybe he can respond with some details.
Yep, I can confirm that the Nub got a drifting Issues whit the Old Version on the OS, because this causes that my Pyra was first setup in English..
but after some sudo apt update sudo apt upgrade it’s works quite good now..
and it’s have this spring sound, maybe because the spring in it?
Not send from my Pyra, but my Pyra is also here whit me ^^