^^^^^^ You are in a time warp. Roller rinks! We had one here in town and roller derbies for a couple of years but I missed them. I just checked the mirror blackout on the A7M III and it is negligible and when electronic not noticeable. And electronic runs through shots quicker than you know what through a goose. But the image is not as sweet as the M9. However, on full auto with the 24 - 240 zoom I am sure of getting "the shot,"