Since nobody has asked the fish what they like, all we can do is present them with an opportunity and see if they are good or not. I've caught fish on old freezer burned eggs, dried out eggs, moldy eggs....you name it. I actually did OK on last year's moldy eggs on springers this year. Most of the scents and egg cures are marketing gimmicks that fool fisherman. It's what's in the egg membrane that counts.... fish em!