Short update on the PRO "snapping" issue : Sergio has found that the issue is related to the Piston Stem (black plastic part with the manometer attached to it), and does not concern all PRO models. This has been confirmed by him making tests on another afflicted machines which had been sent back to him. I have absolutely no information as to how widespread the issue is but this is not an isolated case, of that I am sure.
I will be receiving working parts shortly (I'm in Switzerland so it may still take a week or so) but I'm sure Intact Idea did good work and that the issue is solved on their side. Will post before/after videos on the google photo album as soon as I have time to do so.
EDIT see a few posts below, Flair sent a replacement notice.