[GreyingJay]

We had this issue too. In the end we decided to forego the vision based targeting and changed our code to use absolute gyro values (0 being the direction perfectly perpendicular to the opponent alliance wall). With some tweaking we converged on a low goal autonomous routine that eventually worked almost all the time.

We noticed that the successful teams at our regional (1241 in particular) used a much brighter ring light than what we got through FIRST Choice.

Other things we would have tried if we had time include "sunglasses" in various colours including green tint, doubling up our ring lights, looking for the red or blue LED strength indicators, etc.