Very Nice.
If I may suggest... and if you can get your mitts on it.. use F21 (formula 21). Its a urethane based surface treatment. A much better alternative to wax, IMO.
Wax gets very dirty in a pinball, and traps the dirt inside it. Then the dirty-wax covered ball carries the metal particles and carbon soot, all over the machine. Its also very limited in its protection, even when its clean. A good spin on a pinball can cut right through it. Afterwords, its very difficult to remove all the dirty wax. And worse, is that often, lodged metal flakes in waxed areas get driven deep into a playfields surface... rather harmlessly than getting pushed out of the way.
F21 will reduce the surface friction to probably less than half that of wax. The ball will rocket around the field. And the field will look glossy, almost brand new. The anti-frictional protection is far superior to wax. Ive used it on-location in a busy mall arcade... on a No-Fear & Twilight Zone, for a duration of about 2yrs, with no sight of wear or damages. Sales increased, as people enjoyed the shiny look, and faster 'like-new' gameplay.
If the machine is played often, a simple once a week wipe down is all you need. Takes less than 6min.
In the arcade, with wax alone, a cleaned No Fear would be soot black in a mere weeks time. With F21, I could barely detect any soil, even after 3weeks time, without additional application. However, after the initial tests, I then kept a weekly application / wipe-down schedule.
Also remember, that an older field, is much more pitted and scratched up than a new field. That slows the ball speed down dramatically. Anything that reduces friction, as well as fills in the gaps, will make the ball speed much closer to a pristine smooth surface.
Finally, when you do clean a machine, make sure to clean the under playfield subways as well. They are often hard to remove, but they also often have the most trapped filth. Your newly cleaned machine will be dirty in a very short time, if they are not cleaned as well.
Ohh... and clean up any carbon soot around coils / under-field. It seems that existing soot, helps attract new soot to adhere much quicker. Its like a magnet.
Ive often thought about putting a powerful Ionizer, inside the bottom of a machine...