PWM output is still subject to the resolution of the ELRS protocol, which means there are still only 4x full resolution channels (10-bit CH1-CH4) and 8x switch channels (CH5-CH12). For the best resolution on the switch channels, use Switch Mode: Wide and a TLM Ratio of 1:8 to 1:256 for 7-bit (128 pos) switch channel resolution. Higher TLM Ratios (1:2 and 1:4) are reduced to 6-bit (64 pos) resolution. Remember that switch channels are sent one per packet in Wide mode, taking 8 packets to send all 7 channels (e.g. 150Hz mode 1:64 = 18.657Hz updates to CH6-CH12). AUX1/CH5 is sent in every packet in all switch modes but is only 1-bit (2-pos).