Since the SKY measures rain with a haptic rain sensor, it is possible that a device more exposed to winds and/or experiences any movement or vibration during a rain event could produce inaccurate readings as some have mentioned. However, it is probably too soon to say if that is an issue for yours or not as it only came back online a few weeks ago and yesterday was the first heavy event in that time. As @vtyler98 mentioned, it can take a few events for your mount-specific calibration to be determined.
Please note that we do have an ongoing program where you can submit reports like this so we can more effectively (1) evaluate performance of your SKY and the RainCheck efficacy at your location, (2) improve the calibration of your SKY and (3) provide feedback to the team for potential improvement of RainCheck. You can find more information on that here: Introducing RainCheck