I play nothing but Evans heads. I have multiple kits outfitted with them top and bottom. I have only had 1 head out of probably 40 or so to have any problems. It was a 12" coated G2 batter that after a year of being on a drum went dead. I had heard rumors that Evans sound great one day then the next, dead. Its only happened to one head of mine. None of my coated heads have experienced the "sticky" coating. None have blistered, none have chipped, none have worn off the finish and transferred the coating to my cymbals. They have all (but the one coated G2) performed flawlessly. I have my drums all packed up in long term storage right now with the Evans heads on them. I would be curious once I get them out of storage if the heads will still sound good, will have a "sticky" film on them, or will have blistering that causes problems, but somehow I doubt it.