StressedDave wrote: It's also a bit of a pain as you have to sync data with video afterward, which takes a bit of time...
Not sure how easy it would be to do with the data logger, but when syncing multiple cameras or microphones, it's useful to clap at the start when everything's up and running and then you have a very definitive point which you can line up when you bring the streams together. Maybe rev the engine before you set off then line up the audio with the rev counter? Or tap the accelerometer box with something metal so it pings to line up the audio with the g-spikes.
Again, not used it in this context so might not be so easy!