These tips here will help to give much more forging pleasure and control:
Do NOT run a short line from your tank right to the forge. Run as much line as you can, and get as large a tank as you can.
Set the tank on the other side of the room. Run 2 or 3 sticks of 1/2 black pipe up on the ceiling between the tank and the forge.
This allows the gas to come up to room temp before it enters the forge.
When you run a short line from the tank, the gas is entering the forge dead COLD! It makes a difference.
Now, you don't want to regulate the flame with the regulator on the tank pressure! You want to run a CONSTANT pressure from the tank at about 10 pounds. Then, put a separate regulator at the end of the supply line and control the pressure with that. Where the supply line hits the mix tube, insert a needle valve.
All of these things are available here:
http://elliscustomknifeworks.hightemptools.com/supplies-mainpage.html