I know I'm biased , but IMO, these are the strongest covers and plates you can get. You could go down without a cover on and that pressure plate would hold up and you'd not snap a single spring pillar. They aren't the cheapest, not by a long shot, but they do work and look a lot more expensive than they cost
After Loz lowsided at Rockingham and snapped off all the spring pillars i certainly wouldnt even think about a carbon cover - and he was running a standard one!