This is my first entry into the world pf pneumatic props and was looking at the Air Ticklers. Was a little put off by the price of the sets that some FX companies are selling them for. I found a how to on this wonderful site but I had one question that I didn't see that was answered. For the trigger mechanism, if I just use a thumb trigger--- I just run that to the solenoid 2-way valve right? There would be no reason to purchase one of those prop controllers (that look like circuit boards). or would I need something like that. I don't plan on running any other pneumatic props.