Right, slowly getting closer to my full decked out feeling! MVH studios headstrap, using some velcro to allow the vertical headband to still attach, which I've found helps with the counterweight effect of the battery, whilst also securing vertical motion a little more.
Another adaptation, is I've stuffed the front band with some bubble wrap (may just replace with the foam tape I now have), to help it get a better fit on my forehead.
Although it came with sticky foam for the two overhead straps, and a single thicker one of the back, I've added my own. An extra one on the back, for more support at the base of the skull, along with two on the fixed downward arms (from the 2nd horizontal headstrap to the base of skull strap), since I have a narrow skull, this was biting in, which was 1 a little uncomfortable sometimes, and also meant that the ratchet on the back was pulling it in, rather than tightening front to back as much. Finally, I used the end that I cut off one of those pieces, split in two, on the inside of the lenses, to nestle my nose, since it used to bounce off them with quicker movements, could even be painful at times! That's more due to my narrow ipd (to go with my narrow head) than a fail in design, but those two bits of foam seem to hold it perfectly, and now I don't seem to get any side to side motion on my headset, which is brilliant. A narrow interface would probably help even more, but I'm hoping to get the AMVR facial interface that has side bits to help with that.
Once I get the AMVR interface, I may even try and use the forehead band of the headstrap, combined with the side pieces and nose flap, and not actually use the facial foam from amvr, get my face even closer to the lenses perhaps.
Final addition will be once he gets the audio solution sorted (if he's still working on it), but I'm not an audiophile, so really in no rush for that.