I think you're right dog. This whole tune fiasco is making it more difficult to set up. If there's no upgrades then there is no tuning. That way there's no right or wrong car. No personal preference or advantages.
If we need to tweak one car because it's pi is lower then let the individual tune it up to c class. Means there is less possiblity for major advantages with tunes.
Gambit you're right. We have until Sunday before the rules need to be set and finalised. We had a practice but that didn't clear anything up. If nothing can be decided about tunes I'd agree with dog again and say bin them off.
If a cars pi is 400/500/600 then they will be competitive despite who they're tuned by. My tunes carry less power and more grip gambits tunes have more power less grip. In my eyes that's equal and fair. I don't mind being taken on a straight because I can make it back up on a corner.
Spewed a lot of words not sure if any of it makes much sense to be honest. Final thoughts basically Gambit, you organised it so your word is final.