If you don't want to buy a LPR and a LPC, then you can buy a LPC for use with the stock AOC. I haven't tested to see how low I can get the low pressure, but it definately increase the low pressure volume, therefore lower operating pressures are a given!!!
I will add it to my website shortly!!!
P.S. That is my new BBT 2.2 Dual Detents that I just went through. Check the Tech Thread, I refurbished the HPR on this BBT using that process.
Here is a pci of the AOC LPC: