I previously ran mulitple low 10's, at 148-149mph ( 10.04, 10.07, 10.2x etc etc on 255/50x16 DR's )
At 144mph traps, my car is a LOT slower in terms of power/acceleration that it has been in the past.
As I say, the only reason it was run a 9 these times, is due to using the ET Streets. The car is not performing as well as it should be.
If it was running as well as before, and getting the same launches the ET streets allow.....I'd say mid 9's would be do-able.
Then I might be impressed