Poinas2 the thing is that those who had tuning problems with the "V-specs" was because of their ""noobness""...after a few runs it's pretty easy to tune a V-spec.
The thing with the GO is that it has the power and if it did/will have the ease of tuning then no engine could be muched at that price range and more.
I personally tried everything with mine and i still can't get the power i want and the "reliability".
Of course i might as well be very cranky and ask too much from it...i don't know.