Wes,
Testing and driver training are two different things. The restrictor plate is for driver training.
If Ron Capps, just to pick a name, wanted to put the restrictor on his car and make 5 laps that wouldn't be allowed.
When Courtney Force drives her car, it is usually serviced by John's team. Guido, Ron and that group. It is her car, but they are not testing, they are training her. They put in a "stock" setup and she makes laps. But they can't try a new blower, because the restrictor would keep them from learning anything useful, I guess they could run different clutch stuff, but I know for a fact that the timers are set way differently than they are on an unrestricted engine, so what did you learn? There was an NHRA tech official stopping by Alexis' pit after every run to verify that the plate was on there.
The guys weren't pouring over the computer trying to figure out how to pick it up from 60' to the 330' they were servicing it and sending it. Just to get the laps.
And yes, I was there.
Alan