The good news is I have ordered the 801, 901 and some Cartomizers, so I'll give a full report back next week with my conclusions...My biggest issue with the 510 is that sometimes I get great vapor and flavor and other times it's just blah. The carts run out too fast also... I find I constantly have to top them up.
So, I got my new attys and adapters last night, here are my conclusions... Note I am using a BB with the standard 3.7v battery.
801:
I love the look, size and feel of this one. The carts are huge (hold a ton of liquid), the tips are nice soft plastic and feel very nice, and I like this atty from a cosmetic standpoint. Unfortunately, I cannot comment on the vaping ability of this atty, since it was DOA. I have contacted the vendor for a replacement, and look forward to trying it
KR808 Carts:
I have to say this was WEIRD. I was not impressed at all. I ordered pre-filled carts (555 11mg) from VaporKings. I found I got very little vapor (even after allowing the cart to break in - 20 puffs of more) and little flavor. It was also very easy to "draw" (suck in air) on the carts, and felt like I was sucking on a pen lid where someone had stubbed an analog ciggy

Overall, I was disappointed to say the very least. I will try one more just to make sure it wasn't a bad cart, but honestly, I don't know what I was doing wrong. I had such high expectations.
UPDATE: I tried taping 3/4ths of the way around the bottom of the cart and taking longer, slower lighter draws... It worked! I still prefer the 510/901 experience so far, but at least now I have a basis for comparison... Thanks for all the help!
901:
I think the 901 is a good compromise. It's not as cool looking as the 801, but it's a lot more portable. It's not as portable as the 510, but it holds a lot lore liquid. I also much prefer the whistle tip on the 901 over the 510 tips (flat or round). Overall, I'd say this is a very consistent atty. Every draw gets decent vapor, fantastic flavor and some throat hit. I would say if I compare the best of vapes between the 901 the 510, then the 510 would be better. However, the 901 produces consistency every time. It also has not leaked on me (yet). The 510 is capable of amazing results, but the constant topping off, adjusting, fiddling, cleaning, etc. is annoying. I have the 901 on my BB today and plan to keep using it until my replacement 801 arrives. I have a feeling that the 801 may be my atty of choice, if it lives up to my expectations
On a side note, I also tried something else... I put an 901 cart on a 510 atty. The results were pretty good, but I am not sure if it's advisable or safe. Has anyone else done this?
I welcome your comments and feedback
