I have tested the shortproofing systembulbs similar to the 1156-bulbs Joe Fugate and others use and find that it works.
You can see a demonstration of his technique here:
We have bought our bulbs at BILTEMA – 12V/25W – part number 35-15325
We run our trains with Digitrax DCC.
Here is a schematic plan of the Phoenix Union Station - Mobest Yard - Glendale industrial District area - if you click on the plan, you can view it a larger verson:

I have postet a question on Joe Fugates forum on how many blocks and bulbs I need.