If I find a machine on location with a stupidly sensitive tilt, I stop playing and leave a post-it note on the glass just above the lock-down bar: "Avoid. Tilt is stupidly sensitive."
Nudging is an essential skill. If I can't nudge, half the game has just been taken away from me. On a modern machine, I should be able to get one good shake, take my two warnings, and move on. If I do one good shake, get two warnings, and a tilt immediately afterwards (or, worse, five seconds afterwards without having done anything else), what needs adjusting is the machine, not my style of play.
When I find myself in a tournament with machines that have stupidly sensitive tilt settings, I go to the TD and (politely) complain. Not because of a bruised ego, but because setting the tilt too tight is the equivalent of putting shackles around the legs of the competitors in an athletics event.
If it's not longer possible to nudge in a tournament, whoever set up the machine has erred on the wrong side of caution, just as they have erred if the tilt is overly generous.
And, no, I don't think that practicing on a machine with a very sensitive tilt improves my gameplay. All it does is make me watch in resignation as a saveable ball goes STDM or into the outlane when I know that, with a normal tilt setting, that ball would still be in play.