Well, it appears that this thread has been hijacked in more ways than one, so I'll post my update here as an edit.
Thanks to everyone who gave me their advice. I also reviewed SnowDragon's videos before making my decision and I'm glad I did because he gives a lot of useful information.
I ended up ordering:
1 - Vapor King Single Logo Manual Battery
1 - 3.5ml Dual Coil Metal Tank- 808D Style
Bottles of juice (if you're interested, Traditional Tobacco (Cowboy) Nobacco Juice (30 ml) - Strength: 18mg)
My first impression: AWESOME!
It took a while to be able to fill it with some expertise and I did end up spilling quite a bit at first but I've become quite adept at it. My friend from work gave me a tank refilling kit (from another site because Vapor4Life doesn't offer them) and it is a real time-saver. It has a 60 ml bottle with a long needle-like adapter at the top. I just transfer the juice to that bottle and then the nozzle fits between the cart and the tank, I give it a short squeeze and the tank is filled.
I'm hooked! I keep a few regular carts for backup if I'm out and about but the tank is now my preferred method for vaping.
My biggest irritant is the manual battery. The charge just doesn't last as long as the auto batteries. I've become so good at filling the tanks that I can safely use the auto batteries with no problem. I have found that the auto batteries don't last as long on the tanks as on the regular cartos but I have plenty of batteries that I keep charged and I just switch them out when I need to. I've had absolutely no problems with leaking and my auto batteries are still going strong.
I apparently don't vape as much as others because one tank fill generally lasts the entire day. I've had to order replacement cartomizers (Dual Coil Replacement Cartomizer - 808 Thread - Cartomizer Resistance: 1.5 Ohm) but they are easy to change out. Just be sure to make those "dry hits" when you use them for the first time and there is no problem. For me, they last about 2 weeks before needing replacement. I haven't tried cleaning the used one yet but I may in the near future.
I've ordered a second tank and now have two to interchange because I don't want to be obligated to wait in case anything happens to one of them.
Thanks, again, to everyone who offered advice.
I have four batteries, all of them are "Vapor King Single Logo Auto Battery", and I generally order pre-filled cartos and bottles of juice for refills.
Now, I want to try tanks but I don't know what to order.
The information on the replacement carts provide by Morandir835 (Info on replacement cartos for tanks) is incomprehensible to me. I'm old and I don't have a degree in physics. LOL.
From the other forum postings, I've managed to learn that...
...I'll need to order manual batteries because the tanks tend to leak at the connection point with the batteries and can ruin the auto batteries. (I hate this because I've never used a manual, I've always used the autos. My friend at work tried a manual with a tank from a different vendor and hated it, her money wasted.)
...Apparently, there is a cartomizer (actually an atomizer?) that fits inside the tank itself and it needs to be replaced.
That's about as far as I can get.
So, my questions:
1. How often does the cartomizer need to be replaced?
2. Should I plan on buying replacement cartomizers at the same time I order my tank and manual batteries?
3. Can the tanks be cleaned and filled with another flavor of juice? If so, won't the carto need to be replaced at the same time?
4. I don't understand what "take 4-5 dry hits" means when filling the tanks or you can burn out the carto. Someone please explain this to me. I don't understand how the juice gets into the carto when you don't fill the tank completely and you have to pull the carto out to fill the tank.
5. Which batteries would you recommend for someone in my position? I really like my autos but I don't want to risk ruining them.
Thanks in advance for any insight.
[259 days tobacco-free. Yay, me! ]