No, you don't need the book. You only need to understand that the
performance ratings are *relative* to the peak and sustained numbers
generated. If your friend generates lower peak g-load numbers, but stays
near those peaks for a greater part of the run than you did with your higher
peak g-load numbers, he/she will score higher usage ratings. A high usage
rating only means the driver was near *their* max g-loads for a greater
length of time during the run, it doesn't mean they were faster.
IMO, in order to do any type of comparisons with Geez, whether it be other
drivers or other runs, is to seriously work through all the data and to fully
understand how Geez calculates it's numbers. This is the one factor
regarding any type of data collection that often gets overlooked; it requires
a very critical analysis of the data and how it is collected to get an
accurate picture of what is actually occurring. The general descriptions of
the various Geez ratings can be found in the tutorial and definitions of the
software; both often overlooked as well. I don't really get caught up in the
overall ratings of the run, either. IMO, ratings as they apply to smaller,
critical areas of a run, such as transitioning, are much more important than
the overall rating. I would suggest concentrating on smaller pieces of a
particular driving function and focus on improving there; transitioning
between braking-g to lateral-g during corner turn-in as an example, then
moving on to the next critical area once you feel you mastered it;
transitioning from lateral-g to accel-g, slalom & offset transitioning, etc.
While not claiming to be a Geez expert, the best thing I ever did with Geez
was printing out most of the software screens to read and study for 2 months
before ever actually installing and using the hardware.
Mark Sipe
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