Ok, as I said, I'm a little busy with some other things at the moment, but I did manage to get my own whip created after visiting with the company, Spectrum Gas Products, that fills my medical tanks. Between the OCFA, the FDA, and drug manufacturing license in CA required to fill my medical tanks, what with lot numbers required and all I find it much easier to pay someone else.
I told Spectrum what the glass community was up to and asked if he'd look at the schematic I pulled off the site, offer insights and give me some advice.
What I came away with was 2 very basic whips and a better understanding on how to make more complicated set ups. The more complicated, the more expensive. I left with 2 CGA 540 pieces and one 48" piece of high pressure line. I'll post pictures of the bags. The one piece I didnt get and am kicking myself for was an inline T adapter (t. The whip as I first put it together had homefill adapter on one side, and the 540 on the other, very simple, just plug into the homefill connection and screw onto the tank. Doh!, I cannot see the pressure, and a simple solution is to use the 'T' adapter to install a gauge. I have a plethora of 1/8 NPT valves from old regulators, so with an adapter1/4 to 1/8 I can use the gauge. I'd rather use stock that is sitting around then buy new.
I borrowed a type of a T from one of my 15 LPM H Regulators and can now watch the progress on my fill.

So, the fill, how fast I have been asked. Well, I personally have not known until now. I started at 3:45PM today on an empty tank, I'll keep you informed.

From my call into Invacare Tech services about the possiblity of souping up the homefill performance.

The homefill requires 14-21 PSI in order to fill. The fill ports on homefill capable concentrators will put out between 14 and 21 psi. The front nipple that is typically connected directly to the patient is a 5 PSI port, and would be a bad idea to use (and will not work according to Invacare Tech).
Also, 2 LPM max is what the homefill will draw from the concentrator, makes no difference if the unit is a 5 or 10 LPM machine.

As a point of interest, for medical tanks, the tanks are vacuumed prior to filling to ensure there is no contamination or moisture. We us 50 PSI compressors for some specific patient needs, I asked if that was sufficient to clear a tank, and the guys who fill them said it would work, but just take a while. They use a larger machine. I don't know if any of you ever considered doing that prior to a fill or not, it is not required for industrial gases, but Spectrum for example, just does it as a part of there process regardless.

Back to the Whip, if you wanted to make a more complicated fill line, the only thing stopping you seems to be your imagination. A glass blower who just bought a homefill has an ideal set up where he will be running 4 tanks in series, all going back to his torch, with a series of shut of valves, so he "never has to touch a wrench again".
I'm only setting up a single station, one at a time set up, basically, so I can field test this thing for me.

Pictures to follow.

Also, seems as though something is stirred up, and sometimes that just happens. Sorry about that.

For any of you who would like to see what the future of medicine looks like I encourage you to go here, see what I'm dealing with now and what everyone else will be dealing with in about a year.
Fun Stuff, and directly where my priorities and energies are until the end of this month.
http://dmecompetitivebid.com/palmett...f/DocsCat/Home

My partial cost, without the T or gauge for my whip was $50. But, then again, I have the internet, so I'll see If I can find cheaper prices for the things I am using currently. No part number on the high pressure line, sorry.

I have not had a response yet from legal or my GL insurance agent, but, if I can work it out I'll put the packages on my ecommerce site which has been up for 10 years. The only thing on that site is oxygen concentrators, we specialize in portable units, but none of those would work for your torches!