I am using bontrager ION / RT with small ant + button and they work very nice. I recently got Edge 530 and i can see i could pair it so i did.
But! is there possibility to keep it paired but have control ONLY by button? Control from edge is bery basic and not ergonomic. Button is better, especialy because i use it often (when switching from trail-gravel path to tarmac with some traffic.
I wanted to have only battery level of lights on my panel, but control from my button.