I'm happy to say that I have successfully re-insulated the boiler with modern ceramic insulation. It was a big job but well worth the effort. I also replaced the main and pilot fuel lines with small 3/16" and 1/8" stainless lines well I had the smoke bonnet off. A substantial reduction from the 5/16" and 1/4" copper lines that I had been running. I had assumed that these changes would have decreased the operating pressure that my steamer would be running at. My thought pattern is as follows. If you decrease the line diameter and length, when the steam automatic cycles off there should be less fuel in the lines to clear out and thus shut the burner down down sooner. This should lower the operating pressure of the automatic.
In practice this is not the case. The main burner cycled off at much the same pressure as always. However there was an interesting side effect to re-insulating the boiler. After the main burner cycles off the insulation actually holds the heat so well it increases my steam pressure by an additional 50psi. A welcome surprise if I do say so myself.