In order to allow more mounting flexibility for the hand strap, Valerie has made a prototype using 2 thinner straps for the mounting piece (that goes around the tube). I tested it and found it could be moved higher on my horn despite 2 braces that would otherwise be too close to allow an easy attachment in that position. The two straps seem just as secure, so I don't see a drawback (other than taking another few seconds to fasten it to the horn). Here is a video demonstrating it:
https://youtu.be/PEKAE1dTTu8