I tend to like things loose but this was my experience as well -- it took ridiculous pressures and toe to get the car moving in a way that felt right but it wound up being faster when tightened down. Running toe-out but only a tiny bit of stagger on pressures right now.
Peter, I did the morning group on Saturday -- sorry I missed you. It was maybe 38 or 40 degrees when we ran, and that sealant was spankin'-new. Scary! But it doesn't seem that surprising that an Si would be close -- not much room for power.
Any damage you do isn't from loose talk on forums. It's being atop pax in a competitive region where RR isn't used to seeing you there. (In the past I've gotten emails from him asking about conditions, sites, etc., when the results were anomalous.)
^ This is pretty much the recipe. Adjustable bar and tire pressures are easier to deal with than an aggressive rear alignment.
I routinely add a little toe-out up front on every car, but it's more habit than result of actual testing.