Hey everyone! I hope you all had a Merry Christmas. I am new to the site. I need some advice. I have a Topeak rear bag that does great. However, I need to mount a GoPro for safety reasons. I commute in Japan and traffic is dangerous. I have been hit before and, like most, it was a hit and run. The police will not do a thing unless you can prove who hit you. With the bag, there is no place to mount the GoPro. The bag blocks any mount on the rear of the seat. Does anyone have any suggestions.