I wouldn't do either. Your strap looks interesting but swinging a TLR from the tripod mount could risk bending hte back. The risk with the rolleifix is that if the quick-release lever inadvertantly gets flipped -- your camera will go crashing to the ground. My preferred solution was to use a Rolleifix on a monopod and carry it like a walking stick (monopod extended), or carry it like a baby cradled in arms (monopod fully retracted).