Like I said, I side step/drop/dump whatever the clutch pedal (full release) on the 2 Step/Launch control currently at 4400 rpm.
For Nittos, get them really hot to break the release agent and burn it off. In fact I would say Nittos work best with a really hot burnout (2nd gear, e brake on). Again track prep will be a factor but you can expect 1.9x 60's without much effort.
If you have a Cobb tune, have your launch control between in 500 rpm intervals starting at 3,500 rpm. You can't be as aggressive with drag radials as you can with slicks out of the hole.
Also I would work on releasing the clutch slowly, which will help get your 60' times down with radials.
Did you have esc on or off? When i had it off i got crap times. But i did a run with esc fully on. It helped me roll off the line better and i got a flat 9 with a 2.2 60'. Crap street tires but i was happy.
I did a 9.5 @ 78mph when I first got my car. It only had a green filter and muffler delete ( stock tune ) I had it in sport mode and rode the clutch off the line. Not sure what the 60ft was I dont have my slip near by. This was on street tires at like 32psi