I got a pack of resurrectors and i have been using one pretty much exclusively. I used another one that was hardly used and it really crackles when i vape on it. the used one does not crackle that much. the one i used the most tastes fine but i feel it does not produce enough. is it on its last legs? is this what a worn out carto is like? i thought it was only when they tasted burnt but this one tastes fine. so is it time to toss it? or should i boil it and wash it out?