XT60 Pigtail with Capacitor Set 2-4S (1000UF/2200UF 25V). 1x XT60 (Amass genuine). If you find it hard to tune your PIDs or have a noisy video feed, adding capacitors should help to improve things. A capacitor will absorb power spikes generated by brushless motor during braking and in this way will help remove electronic noise from your setup, which is the source of the problem.