thanks to Teddy and Himanshu for giving me their data from the last GGR event. racechrono does look to be quite helpful. i figured out how to add reference laps and use speed delta/time delta so i could compare the two drivers. i am able to see the slight difference in driving lines and figure out what worked the best. it looks like Teddy was able to get some great times through the first slalom section with Himanshu going 5-7 mph slower through the cones. Himanshu had great pace through the paint and breaking into the horseshoe but Teddy made the time back and more by using first gear and getting a straight shot to the next turn. it was pretty close after that with Teddy getting more top speed in the fast section but Himanshu made up some time by using the same line and going faster into the last turn.
great stuff. the software is a bit glitchy with the graphing of the time delta but the value is displayed on the bottom of the screen. the throttle position data should be useful too but that data from Himanshu seemed to be way off? once that is sorted out we could use longitudinal acceleration to figure out braking points and pressure.
looks like a great tool and for a $200 investment if it doesn't make me faster at least ill know why i'm so slow

here is my dash video and i'll have data soon