After checking the track forum, it doesn't look like many people are dialing in rear camber and also saw report of a lot of camber gain for a little bit of lowering. They're mostly going with a stiffer front sway bar which I hate for driving feel. I would only go the direction of losing the rear sway bar or going stiffer springs up front because if you've driven a car with more spring vs a car with more sway bar, you will understand. But class rules must be followed in order to stay competitive
