1. I'm not trying to attach a hp100 tank to my leg...LOL
2. I need to have the tanks manifolded together to get my air time remaining.
3. My bcd has 45 lbs of lift, not a problem. for two tanks.
4. I was suggesting putting H-valves only on my (2) HP100's
5. I wanted to add 80cu tank on my leg, using a fill whip style setup to manifold it together.
6. My computer allows for doing deco diving also, so i just wanted to add extra air. for diving wrecks and extended time down.
7. i was thinking a DIN reg adapter with a hp line, going to a yoke adapter for a yoke reg. would allow me to know exactly how much air time remaining i have, as well as deco time, all together on my one computer, if i bought an extra tank with a sep. reg setup, thats alot more junk to be hauling around, than just a tank on my leg.
8. to all the know it alls, that sat home today, looking for a job, and talking their poop.
your mom is the troll
Get's me thinking.
There is a type of thread that occasionally pops up here in ScubaBoard. I'm not pointing any fingers here, but...
The OP gets an idea that he suspects is flawed, and while he's determined to proceed with it, he'd rather have the support of at least one random stranger on the internet. So he makes a thread proposing his idea and waits.
Problem is, no one wants to be the guy recorded for all ePosterity making a suggestion or blessing an idea that directly leads to the next release of DAN's accident statistics, so they either explain why it's a bad idea or crack jokes.
But that's not what the OP is looking for. He wants someone to blow smoke up his ass, and when he doesn't get that, he turns defensive and sardonic.
I don't get it.
Now, back to the thread at hand.
Your primary source of propulsion when you dive is your legs. Strapping a 2 foot long 40 pound hunk of metal to one of them is a terrible idea. You're considering adding countless new failure points with all these adapters, flow restrictors, hose fittings and who knows else what, and the general kludge of a setup calls into question the likeliness you could efficiently locate and effectively resolve a failure on the surface, let alone underwater.
There are also the generic concerns with relying a computer that 'allows for doing deco diving' to plan your gas usage. Since it most likely only tells you how much time you have left at your current breathing rate and doesn't consider how much you'll need to complete mandatory decompression stops, you're inviting a lose-lose (bent or drowned) situation.
There are a number of proven solutions to the need for more gas: big tanks, stage bottles, twins and rebreathers. All of them deserve respect and diligence since they can allow you to get into a dire situation.