As promised, here's an updated list of recommended cartomizers, by model. This is just a rough draft. Please look at the three (four?) lists and leave your comments. If I made a mistake, an omission, if you disagree with my assessment, or wish to add your own thoughts, please do so. I'll add it to the master list and when it's complete, we'll ask one of our benevolent mods to move it to the Master thread.
510
Bogetech - vertical wire - silver threads 3.0 ohms
Solid, burn resistant, long lasting. Highly recommended, especially for new vapers. Nice draw. LiteCig, Vapor Kings, Madvapes.
SLB - horizontal coil - brass threads - 3.0Ω
Generally very burn resistant, but but some people report burning them. A bit tighter draw than the Boge cartos, but possibly cleaner tasting. Long lasting and easy to use. IkenVape, LiteCig, Vapor Kings.
Tuofan – vertical coil – brass thread – 2.4Ω
Nice vape, good performer. Some minor quality control issues, but perfect resistance for the eGo/Riva batteries. Available from AZ Smoke Free, inexpensive.
Bauway – vertical coil – brass thread – 2.4Ω
Inconsistent. Good ones last and vape great, duds burn quickly. Madvapes.
Genuine Joyetech cartomizers – 2.6Ω
Worth trying. Basically an atty/cart combo in a sealed unit. Superb taste, very difficult to refill (a syringe is required), some quality control issues. Widely available: Cignot, Good Prophets, Clouds of Vapor, WordupEcig, Liberty Flights.
Ego Mega cartomizer – 2.6Ω, 2.5 ml capacity
A giant version of the Joyetech carto; similar performance and availability.
Bogetech LR 2.3-2.5Ω (IkenVape); 1.8-2.0Ω (LiteCig, ProVapes) – silver thread – vertical wire
Recommended for more experienced cartomizer users. These work very well but are more burn prone due to lower resistance. Need to be kept very wet at all times. Not recommended for HV vaping. [Provapes alternates between two kinds of LR cartos. Horizontal coil (SLB?) & vertical coil (Boge)].
Clouds of Vapor LR 510 cartos- vertical wire - ~1.8Ω. Similar to LR Boge but a different (undisclosed) manufacturer.