If this is your first shifter, I’d just suggest to get out there and get a few practice sessions in before worrying too much about tuning the chassis. If it is a new chassis – it is most likely setup on a proper baseline anyway. Have fun with it, get comfortable with it, then worry about working into its finer tuning capabilities. Tuning a chassis can be very difficult until you yourself become consistant.
We may not be the fastest on the track...but we're having the most fun!