I had this very problem this turkey season. If you sit in a double bull blind, and try to sight on a target, in even cloudy conditions, it's nearly impossible to see each individual pin, BUT I had some of the glow sticks that TR has available for the sight, and I used them and they kind of solve the problem. When I say they "kind of" solved the problem, I mean right at first, the glow stick worked great and I could easily see each individual pin, BUT after about an hour, the glow sticks fade to the point at which I had trouble seeing each pin again, even though the gow sticks do glow for several hours.
So, the available glow sticks help, BUT I think for next year, I will have one of the little lights installed on my sights, Just for turley hunting out of the blind. I've never really had any trouble's other than this. BUT from inside a blind, the TR matrix is not good at all, I hope adding a light to it solves this problem.