For the question "How Many Scamatologists Does It Take to Screw in A Light Bulb?"
The answer truly lies in how much money the Scamatologist has. If he has enough of those Franklins, like a box full, he can start erasing those engrams and eradicating those body thetans to where he is ready for...SUPER POWERS!
And not just shitty powers like super-ventriloquism or like Matter Eater Lad either. Really cool powers like, well it's a secret but get those dineros in and when you are totally bankrupt and screwed, then you will be able to work on that light bulb problem.
Or they could just quit the cult and screw the damn bulb in.