Sharon,
Wow, it certainly sounds like the last batch of Titans TW got has problems. First of all the manual battery shouldn't be doing that. I'd contact TW about it.
One other thing to note is that you shouldn't judge the throat hit and vapor right away. Sometimes atomizers need a good day or two of use before they come alive and work good. Also, I always drip a drop or two of juice on a new atomizer before I use it. They are supposed to come from the factory with some juice or primer on it already, but if it's dried up by the time it reaches you it won't work well. So give that a try if you haven't already.
I have tried pretty much every e-cig out there and the 510 is without a doubt my favorite. What you are experiencing is not the norm. But like I said, drip on that atomizer and use it for a couple of days before you make your final judgement on it!
Thanks, I'll keep working with them, I haven't given up yet. I really don't think I'll return anything to TW, not after what I've heard. Right now in my life I don't need ANY headaches, it's just not worth it. I've ordered loads from TW and their shipping is great. I've not had to deal with a problem so I don't know how they would be, but I'm not willing to find out.
Appreciate all the help!!