Soooo. These caps do work but on my maiden voyage back into the game I found that my trusty ol NY FATS and and sekt adapter didn't lay my rusto or PT 2x super fat like i expected. Has this happened to anyone else? People swear by them and rusto male cans..I've seen NY fats lay fat with the same paint and the wing cap adapter. I ordered the AP fats cause these didn't tickle my fancy this go around. Maybe I can, "test" it with other caps later like the youtube review kids haha(apreply)Yeah all adapters will loose a little pressure. Not the best for fats. But what can you do? they aren't about to change the valves back.