901 is what I would try. It brings put the flavor of every juice I've used. I personally use the LR901. Just be sure when using an adapter that the bottom is totally flush so it doesn't short the mod. The Reo mini was designed to work with a 501, according to Rob, and different ohms will make juices taste different. The lower the ohms the hotter the burn and sometimes delicate flavors can get lost. I also have a SB where I do use a LR 901 and all my juices taste way better than my LR 501 on my mini. Thinking of trying some different companies, heard alot about Cisco, going to try them next, don't give up, and don't buy the cheapie atties, you get what you pay for.