Zung,
The ultimate reg is actually the SP MK VII with removable plugs that allow the owner to pack anti-freeze grease into the ambient chamber. This first stage will deliver more gas than any two divers could ever need, has all the ports one needs, and honks if you get to "bingo" gas remaining.
As you are my friend, I'll be happy to sell one to you.
Couv
And it has the added benefit of allowing you to take a few pounds of lead off of your weight belt to boot!!