Waxman,
There is a local gas station with a Laser 360 charging $16 for the following:
2 step presoak
Underspray and wheel/rocker spray
Triple Foam Polish
Hot Wax
Spot Free Rinse
Dry- machine mounted
The Hot wax is the only difference from this package and the one below it, which is $11. On the $11 package, they use Double Bond instead of the Hot Wax. I mention this because this wash did not see the need to increase their presoak applications in the bump up to $16, so you might not need to - but I know every location is different.
Time is a factor too - with a machine mounted dry, one or two more presoak passes would make this wash very long, which for $16, I am sure customers want.