I have a hot-shoe mount for my big camera, and a ball mount for the go-pro. They work very well, but my problem with that solution is the issue of 'quick connect'. There are times I simply want my go-pro somewhere other than on the camera. I can and have done that, but it means undoing the ball clamp with the accompanying risk of losing stuff underwater.
The flex line with big clamp isn't ideal either, but it does allow me to clamp the go-pro to things or carry it free in my hand. Last week I clamped it to my BigBlue light (I'm using it as a primary with a goodman handle) but the flex line 'as sent' was just too long. I've removed it as mentioned in my prior post and tomorrow will try clamping it to the light on just the two ends (no loc-line).
I like the fact that this setup uses the stock go-pro quick connectors, which makes things a lot easier (for me) than ball mounts or other dedicated screw mounts. I just wish there were more quick-connect base options available.