I just got my DSE901 "Round Orange" carts from truevapor.com. Wow, these are going to be my primary carts. The flat tip ones suck compared to these. Not only are they more comfortable and feel more like regular cigarettes, they DO NOT LEAK AT ALL!! My main problem with the flat tip carts were that no matter how careful I was (not over-topping), the cart would still leak. The design is completely different and when you look at them both on the bottom end you will understand.
I do not know why these are not the standard carts shipped with the DSE901 mini cigs. These are infinitely better carts. They need to make black and silver ones.
I tested these round carts on both my DSE901 mini and Trog's Screwdriver. They fit more snug and again, NO LEAK WHATSOEVER! Another thing is that with the platinum DSE901 atomizers, the flat carts tended to be a little to tight and it would scrape off some plastic pieces whenever I pushed it in, which made it loose. Not with the round carts.
I actually prefer this orange color with my SD or with the platinum color. I would probably like to get some black round carts for my black mini, but I like function over looks any day.
GET THESE ROUND CARTS if you use DSE901 atomizers. Thanks!