Vid - Thanks for taking the time to share your knowledge & experience. I have followed your other guides and found them to be invaluable.
Regarding playfield cleaning, I have always used a cleaner wax product which explains the short term benefits. Thanks also for posting the warnings about silicone, alcohol, and water based products.
Blitz is now on order and should arrive early next week. I will also be trying Naptha for deep cleaning.
Keep the information coming!