The chip was set up for his engine and nobody else's!!!
This is not true. While most of the early R&D was done on my own coupe, as part of the development process the chip was tested and tweaked on many different coupes, from standard to varying degrees of mods, before it was made available to other forum users. This included multiple rolling road checks on different cars.
It had already been established even before this point that 1.2 bar (0.2 bar over standard) was considered to be the maximum "safe" level of boost for a standard or lightly modified coupe and the vast majority of them will run quite happily at that level of tune with little or no impact on engine reliabilty. Depending on how exactly it's driven the life of the clutch and turbo may well be shortened, but that's hardly unexpected.
Of all the completely standard or lightly modified coupes that I'm aware have been chipped (with any chip, be it Gtec, Novitec, Digitec or whatever), I'd say no more than 1-2% have had serious engine problems, which considering the coupe isn't exactly the world's most reliable car even in standard form, is not too bad a result. eg. my own coupe needed an engine replacement long before this forum even existed, while the only mod it had at the time was an air filter.
Having said all that, I do agree that for peace of mind a proper fuelling check on a rolling road (whether the car is chipped or not) is advisable, along with fitting a boost gauge and maybe even an air/fuel ratio meter, just to keep an eye on things and identify any changes as possible problems before they develop into anything more serious.
Oh and checking the plugs is a valid way to identify serious fuelling problems on 1 or all cylinders, even if the engine is switched off at idle.
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