I'm thinking of either the J tank or the Lil Mama tank. I'm leaning toward the 3ml SS Lil Mama to use with SR Boge cartos. I don't use dual coil cartos. I've tried a cheaper tank with less than stellar results. This could have been due to user error.......LOL..........I think I'll have less problems with the tanks that have a platform that the tube sits on and metal end caps rather than delrin caps......Any opinions or thoughts? Any cons on the SS Lil Mama?