Some member of this board (a monster) ought to make and sell a full size hugger,
using the mount points for the stock plate holder to bolt a bracket to keep it in place.
This way, when I buy my new Rocket in a few years, I can just put it on.
You should do as I have and complain to Triumph. They are well aware of this issue. Maybe they will provide something better as they told me they had trialled other types but chose this one as it looked better.