Using a DIY mouth tracker, the left and right expressions may be uneven and require different calibration. However, it's hard to get the calibration just right and one side will be more expressive than the other. This happens for me especially on the MouthUpperLeft/Right.

It would be nice to have an option to average select left and right expressions according to a certain percentage. Such an option would allow an increased stability at the cost of fidelity (which I personally would prefer).

For example: if SmileLeft is at 0.8 and SmileRight is at 0.4 but they are averaged together at 50%, SmileLeft would end up being 0.7 and SmileRight would be 0.5. If they were averaged at 100%, they would both be 0.6.