I'd buy your boost controller for 50 bucks, if I had 50 bucks. :o

I'd love to have an electronic controller, nothing fancy, something like a profec b spec II. I'll probably buy one after the problem I just mentioned has been solved for a while.

As for the spring, my local ACE hardware let me down on all of the parts, but I was able to source a spring that looks like it will work from a 20-year-old Dacor regulator at work. I also have an idea on how to prevent the loss of the adjustment screw and overboost.