Thanks for this awesome post. I tried out the heatsinks, but I also removed the label as well. I recorded a wedding this weekend. I had the camera on for just over 2 hours. I was recording on and off for the first 30 minutes, then continuously for the next 1 hour and 30 minutes. It finally shut down on me after that time. I never received the icon about overheating it just shut down. I turned it off, then back on and I was able to shoot for another 30 minutes. Weather was close to 90 degrees a little humid with a slight breeze. In my book I'd say that was a win. I was able to get through the whole wedding no problem, and it only shut down on me when they were pictures afterwards.