Oh, the GoPro headstrap is a great idea! I've been using
a modified safety helmet successfully for a few years, but I might give the headstrap a try. It seems less cumbersome.
One 'downside' I see with the headstrap is that it probably requires more angle correction when tracking. With the 'hardhat', orientation remains very consistent from session to session since its position and angle is invariably fixed to the helmet. But I imagine the correction is pretty minor.
One question: does it 'jiggle'? With the hard hat, the Controller is rigidly locked so there is no jiggle, or much slipping during performance because it has a chin strap. But since the GoPro headstrap is designed for action photography, I would expect it to be pretty solid too.
Thanks in advance for any info.