Your answer should be yes if you want more detailed info on your car and hows its running.. That boost gauge is just a idea gauge of boost. Datalog will show everything you need and the forum to see if your car is running right.. IF you would have datalogged on that run, that would of been enough to see how your car is running.
BTW what map.
: ///M5 LCI with Evolve and RPi mods
E92 335i ||| FBO Heavy modded E90 LCI M-Sport 335i