I am fully enjoying my vaping experience with one exception. I currently have a black 901, it was my entrance into the e-smoking world about 3 months ago and it has served me well. The most important thing that I do not enjoy about it is the flat-tipped mouthpiece on the 901. I am considering going to another e-cig that will have a round mouthpiece. I feel that a round shape will emulate "smoking" better for me. Now, now boys...no wise cracks about how you'll let me suck on your round thing please... 
For the most part, I enjoy the 901 - it's a real workhorse, reliable and easy to maintain. I don't like the flat tip, and that it's so long and off balance the way the battery end is so heavy. I think I'd really enjoy something shorter (more cigarette sized) and with a circular mouth piece. I know I will give up battery life and cartridge capacity with a smaller e-cig, but that's okay with me. I'm willing to sacrifice those two things in order to have a more realistic smoking experience. I'd like it to look more like a cigarette too. White where the paper would be, orange/tan where the filter would be. Obviously, based on what I like, models like the SD are clearly a poor idea for me at this juncture. And the pink 901 is cute as a novelty, but a foofy pink e-cig just isn't for me.
Based on what I am looking for, what models (from what suppliers) would you recommend? I'd prefer to order from within the States, and of course lately everything seems out of stock everywhere.
I'm looking forward to hearing some recommendations from more experienced vapers! Thanks guys!
Felicia

For the most part, I enjoy the 901 - it's a real workhorse, reliable and easy to maintain. I don't like the flat tip, and that it's so long and off balance the way the battery end is so heavy. I think I'd really enjoy something shorter (more cigarette sized) and with a circular mouth piece. I know I will give up battery life and cartridge capacity with a smaller e-cig, but that's okay with me. I'm willing to sacrifice those two things in order to have a more realistic smoking experience. I'd like it to look more like a cigarette too. White where the paper would be, orange/tan where the filter would be. Obviously, based on what I like, models like the SD are clearly a poor idea for me at this juncture. And the pink 901 is cute as a novelty, but a foofy pink e-cig just isn't for me.
Based on what I am looking for, what models (from what suppliers) would you recommend? I'd prefer to order from within the States, and of course lately everything seems out of stock everywhere.
I'm looking forward to hearing some recommendations from more experienced vapers! Thanks guys!
Felicia