Okay, the good news is that it was easier than I thought to built the throttle modifier tool. The bad news is that something isn't right with the way I'm handing something because the results I'm getting really aren't even close. I'm the blue data, you're the orange data. There is clearly something I don't understand about what KSP is doing.  Unfortunately the KSP API and the Unity API documentations are no help. Let's try this before I go digging another way: can y