I should have written an update a while ago. After riding more with the LHRB, I discovered the major cause of my rear brake fading was .... ME. I think the rear brake was so easy to use when on the handlebars, I started using the rear brake too much. As soon as I rode with a more correct style with the front brake doing much more of the work, my fading issues have disappeared completely. I can now do intense 20 minutes sessions on moto track with zero fade.