Can I use my STAC Zero wheel weights with Fliiiight? January 26, 2022 22:09 Updated No, the wheel weights interfere with the optical speed sensor. Related articles Troubleshooting: Fliiiight is having difficulty detecting the wheel. STAC ZERO: Compatible training apps Using the 4iiii app's diagnostic tools Can I leave Fliiiight plugged in? My training app says I should do a "Spindown Calibration." What do I do?