Ever noticed the relationship between speed / ET and $$$'s ...

. I think it becomes "exponential" when you strive for anything 10.99 or lower !!
I know where you are coming from - the last 3 years been creeping down from 11.70's to 11.40's and finally 11.20's with the same combination. Tuning, documentation ... more tuning and a few pennies here and there ... trying to wring out that last bit of performance.
... uh, err ... what was that noise from the motor anyway

... hence the "stroker project" that is underway.
Good luck with your quest and keep us all posted with your progress ... 10.99 ... 10.99 ... 10.99 ... mantra !!!