Hi Vapian,
So first of all, I just wanted to ensure that I'm setting the proper tone here. My first post was succinct and my two images an intentionally sarcastic display of a two-step process that couldn't be simpler. On looking back, though, I realize that it may have appeared crass or belittling, and that wasn't my intention. Your response doesn't suggest that you took it that way, but we lose tone and expression over this medium, so I probably should have been sure by opening with, "Hey, great idea!"
I do think that it's a very innovative approach. In addition to your original purpose of a method by which a blind person could fill a cartomizer, the multitude of methods of which each have their champions and their naysayers suggests that there is a market out there for "a better way". This is definitely breaking the ground for a better solution.
And a bit about me. My other hobby is saltwater aquariums. I'm not extreme like a number of other guys I know who are into the hobby are; I've seen tanks where you had to get inside with scuba gear to do maintenance, but the point being that you wind up with some pretty non-standard plumbing going on in these systems. Half the gear is from Europe, while the plumbing itself uses -- lest I start a flame war -- we'll call them "American units" of measurement. When the fellow at Lowe's asks if he can help me find what I'm looking for, I say, "No, but you could probably point me to the aisle where I could find the parts to build what I'm looking for." "Why is he telling me all this?" you ask? Point being, I've jumped through all types of hoops trying to find a way to make liquids under none-to-some pressure travel through various types of connections that don't align properly, so I feel your pain.
So, on to the response:
The idea is great, actually fantastic if it the parts you have fit together well, so thanks for pointing it out! But the inconsistencies I experienced didn't meet the goals of simple, consistent and versatile. Of course, the Inators don't really meet that goal yet, either. It's kind of the same problem I've been running into with trying to get tubing of the right size and consistently sized for just a couple of applications, much less trying to cover "corner" cases as well.
Maybe I just got particularly lucky, but with this clear drip tip & 5ml syringe from LF, the tip of the syringe fits so snugly (there's a hairline plateau at the base that sort of "snaps in" the first time) that I can put a carto on there and shoot water across the room. Not at all suggesting that this is a clean, practical (or marketable) solution, but it seems to do the job quite well for a "poor man's" solution for any 510 (or again the stars were aligned and a BOGE fits better than others, but by design that tip should fit into the cartomizer end pretty snugly with the O ring).
I'll admit, the GoGo and Echo have me trying to re-think a lot of things to try and come with something truly versatile that doesn't require any adhesive. I'm not sure a single "kit" can do what I'd really like it to do without multiple parts.
I'm not sure it's unreasonable to have multiple parts, either in a how-to video, or alternate configurations in a prefab kit. One-size-fits-all would be great for 510 & 808, though, and oddballs such as the GoGo would have special considerations. This is not unlike accessories such as drip tips, lanyards, etc. would be, and I would expect that GoGo users are somewhat accustomed to having to find "special" accessories.
From the other kits people are selling, I really don't like the idea of boring out or countersinking smaller tubing so cartos can be inserted... it's difficult to do right and the example I've seen is, frankly, a bit sloppy. The other kit seems to use a combination of smaller tubing with thicker walls nested in larger tubing with thinner walls, but the tubing is so long that in my opinion it's just a matter of time before someone spills bottle of nicquid and/or sprays water from a dirty carto all over the place.
Yeah, that one with the 2 pieces of tubing is definitely a bit unwieldy. The "just insert this end into the juice bottle" looks pretty spill-prone. Perhaps if it threaded onto the bottle to where it's a sealed system during the part where you need both hands to operate the syringe it would be better, but in all it appears clumsy at best.
One thing my testing has made clear - the flow pattern inside a cartomizer is such that unless you insert a needle to really flush out the battery end it takes more than a few ounces of water to really clean a truly "dirty" carto, and some cartos get to the point they just can't be saved. It's not quite as easy and thorough as some videos out there would have us believe.
Heh, yeah, I noticed in the process of trying this "pull in fluid through the battery end" that... wow, this carto is really nasty.
Like, cleaning an ash tray nasty. Pulling in and out about 10 times with isopropyl (really should use alcohol for this. Unless you refill it right away it'll mildew in there) dingied up the water and left the filler material looking snowy. However, this introduces one of my prime concerns with this method: To fill it, we're pulling clean liquid in and, we're expelling dirtier juice back out and into our formerly sterile (not really) juice container. That was what prompted my thought of being able to thread the needle onto the carto, with the caveat that we have to stop the second we see juice to minimize the contamination when refilling. The concern being: What is the "dirt" inside of them?
* Is it burned wick/filler material?
* Is it excess food coloring stripped from the repeated use of colored juice?
* A sinister plague that would, if it were to leak out of the mouthpiece, most certainly turn the ill-informed imbiber into a flesh craving zombie?
At some point we also have to be resigned to the fact that these are disposable.
I might just adopt a pattern of adding a sticker on each refill and remove them when cleaning. Something like
these labels would do the trick. 4 reds and off to the bath with you.
and to answer your question . . . And trying really hard to be as unbiased as humanly possible . . I will put on my most Ethical and Professionally Objective Evaluator's hat on for the benifit of you and this thread . . . 
