I agree. These are made by GW in house via their RTM process. I think the quality of the lids are just ok. They use fairing compound on the edges so they are prone to chipping. They cored the older ones with wood, once wet you're screwed. If you have the old ones, you can cut the core out via the backside and prob rebuild. Other option as stated is to make new. If you have the old ones, bring as it may help in the fab process. Good luck.