On two of them, yes, but it wouldnt be fair to name two & not the other ( the car I had been involved with was 4th ), my point was that the 'rules' were not being administered in a fair & equal fashion. You still have not defined cheating for me. One of the reasons given for why I ended up as a tech officer for HQ's in the SI for a while was a couple of 'good old boys' felt I was a bit too creative!, funny thing was I was thinking of them in the same way only worser!!
With regard to Johns post, OSCA in its early non-spaceframed formatt had very few if any problems with regard to rules compliance, any who got too far away from the envelope seemed to get brought into line without any great drama, yet there were trophys & series points up for grabs.
If HMC has no title & therefore no need to win, why are so many owners building better motors , modifying suspension etc to try & be more competitive?