Cmon now...you can drive.
I'm sure with a 6 speed it is much more challenging to launch etc.
With mine I basically break torqued it to about 1500 RPM and hit it right when I saw the green.
Got a tiny bit of tire chirp but for the most part traction all the way.
I would be interested to try a 6 speed a couple of times just to test myself.
Your times are probably as good as any for a first time and a 6 speed.
It was all about the experience to me.
NOTE: I also did 22 runs that day to get those best times.
I also ran several low 15's too.