This thread is awesome seriously, helped more than a lot
But I still can't make the difference between bios and flats. Sometimes, it's pretty obvious but not always. If the rotation is big (more than a 720), it's easy but under that, sometimes, I can't. A flat 5 looks the same to me as a bio 5 (I know they're not).
Does anyone know a way to see the difference? Cause the positions right before the take-off are really similar.
Thanks in advance for your answers