ive been running gotech for over 3 years on several engines and been on the rollers more times than i can count and never have i had any problems with it.
the one project rs is talking about was second hand when the lad bought it and he fitted it himself and never had it set up on the rollers.
jamie must of mapped 1500+ of these by now and this is the first post on here that ive seen with bad things said about it.