When the knock system starts to auto-advance, it is already under boost. The TPS reading isn't involved in the auto-advance algorithm. It would be fairly simple to add in a TPS conditional in the ECU code though. (i.e. if TP > 90% don't auto advance) I would love to see some real data plots of TP vs. TPS vs. knock advance for spoolup on the street. That's why everyone should get this software and share their data ;-)