For years I have been happy with the performance of 100 gr. thunderheads and muzzys in a well-tuned bow

. However, now I have switched to a much faster set up (~280 fps). Thunderheads flew horrible and inconsistent. The muzzys flew more consistent, but still a lot different than my field points. So I am thinking for trying something else.
Does anyone have any experience using the Ultimate Steel broadheads by Rocket? I know the previous broadhead design (silver ferrule) had issues with losing blades; however, I have heard the rocket has addressed this issue with the new design (black ferrule). Any other non-mechanical broadhead designs?