Hi Chris, The two packs of "C" Heads and attys I bought were LR's. In the spirit of keeping an open mind, and... after reading some positive EGO C posts, I decided to try my C's again this afternoon. I pulled one out of my second package and I have to admit- much better than the the ones in my first pack. I may have wrongly condemned the Ego C set-up. The C atty I am vaping on right now has good vapor production and great flavor. It is a cooler vape than most cartomizers, but I can live with that. I'm thinking the first package was mis-labeled an were not LR's at all- and I tried all five in the pack.
I'm trying to remember if the eGo-C attys are marked anywhere to indicate LR- IIRC Joyetech does label their attys, just can't remember if it's the eGo attys or their 510s. Also, their quality control might be an issue- I've now had to toss 3 of their attys (within ~2 months, but rotating like 10 of them...) and also had one which was performing terribly from the get-go. Have also found they require a little burn in time before they get going well, so I'll usually put a drop of flavorless on them and give them a full burn before trying to use them. Still my first few drags with the tank on it will be junk. Once they get going though (assuming you've got good attys) they seem to perform OK. One poster recently stated he has gone four months without having to replace one, so I guess it's just a roll of the dice...
I too am thru with wasting my money on carts, because I just can't stand the burnt taste I get. No matter how wet I keep them, or how often I blow out old juice, that burnt filler taste just hits me after a day of vaping. I am going to keep the C atty on my EGO for a few days and see how it does.. I do have some EGO Visions Clearomizers and Cisco 510 attys (with drip shield) on order and I'm excited to see how they do. The Visions clearomizer and EGO C attys (if my current one continues to perform) are definitly more cost effective than throwing out burnt carts every day.
One word of advice on those, don't fiddle too much with them! Though it seems to be rare, they can come apart and make quite a mess

For the most part though, they're pretty solid.
Luvinit, I'll follow up to let you know how my C attys are performing. I assume that they will only get even better after about 5-6 hours of break-in, like most attys. In the mean time, if you do decide to order the C attys, make sure you order LR's and understand that the EGO tanks systems require a softer, slower drag that carts.
This is great advice! Drawing too hard on these seems to be the #1 reason that people have leaking issues. I haven't had it happen to me, but have been told that once liquid starts moving past the reservoir towards your mouth, remove the tank carefully (grab a towel just in case) as it's likely to leak at this point, clean it and refill or use another.
There is another post (a sticky thread I think) here on ECF regarding the general use of e-cigs which recommends a gentle 5-10 second draw to get that perfect vape. To add to this, I'll often press the button a second before I start vaping, and I never draw directly into my lungs- first into the mouth for about 6-7 seconds for me,
then inhale. I've found this works pretty well.