Wow! OK, Most of my tips are from Iken, maybe it's foolish of me to think they should fit the atty they are made for. Who said Anything about being rough? If the tip doesn't go all the way down I don't force it down on my own, but it does happen sometimes in my pocket. When you try and separate the two, the casing stays in the tube rendering it useless. My stating that I have been vaping three yrs. was just to let you know I'm not a newbie. I don't care rather you care or not. I dont care about your mower either which has nothing to do with anything in this thread. I buy Ikenvape products for their quality, my entire atty/carto stash is 90% ikenvape product. I'm not taking shots at ikenvape. I just can't believe these attys are coming apart so effortlessly. Maybe I'm just getting bad batches, I don't know. I'm glad some of you aren't having this problem, but I know others are. With that being said, I hope my next batch is better. I'm not a hater, I'm loyal to Iken, just would like more constancy in this particular atty, that happens to be my favorite!