Header gaskets

I am about to pull my super comps and have them re-coated. Through the years I have used just about every major brand and type of header gaskets and nothing seems to last very long before leaking. Yes, I always make sure they are positioned and installed correctly but it usually is not too long before they leak. Which ones have you guys had the best results with? Has anyone experimented with any of the high-temp sealants? I am running a 383 with 11.5 to 1's. Your input is appreciated.