I'm trying to understand the ESC timeing better. I know with motor timeing your takeing away bottom end power from 0% throttle up to XX% but with ESC timeing (Speed Passion GT2.0) at what RPM range is the ESC doing it job? or is it the same as motor. its working from 0% to 100% is there a diagram or somthing to help me understand what is happening when I make these changes?

I've tried repeatedly to get some clarification about this over in the speedpassion gt2.0 thread. The best I could manage was that the esc timing ADDS to the motor timing, but not quite. Supposedly there is some secret magic variable stuff going on that ramps it up or down depending on rpm and fairy dust.

In testing for performance effects, it seems that adjusting the timing on the motor has more of an across the board "hard" effect, where the esc timing is a "soft" adjustment if that makes sense.

More advance = higher RPM, less torque = lower acceleration, but higher top speed

I think that for onroad, most guys advance the motor all the way. I would play with the esc settings, watching temps and lap times.

Timing in the Hobbywing ESC (Speed Passion) only works in sensorless mode. I don't know how they use their timing, but some ESC makers say to use more timing with more poles. Now some ESC has timing boost or turbo boost which adds timing in sensored mode, but the Speed Passion doesn't have that feature. Like it was said here, in sensored mode with your ESC, adjust the motor timing to get the results you're looking for.

So "Technicaly" I could turn my ESC timeing to 0 and work off the Motor timeing since the ESC timeing has no affect with the Sensored motors

Yes, but don't crank you motor timing to the max. Find what works better for you and check temps.