if its not necessary, dont foam the vehicle.. i know it looks cool and "omg im such a professional for using a foam gun" but it does add more time.. i'd skip that
and i wouldn't dry after the wash.. go ahead and move on to your waterspot removal and claying
and ditch the SSR1 step
if the customer isn't paying for the add ons... then dont do em
you expect the customer to be like "omg bro my paint is so slick hell yes"..but he probably won't care
Spot on. I bought a foam gun thinking it would cut time in half and i was wrong. Ive used it 3 times and havent used it since. Its all for show IMO. TBH i hardly even use my pressure washer any more. The only time i use my pressure washer is if the wheel wells are really bad, the truck has mud on it, or its covered in bug guts. Thats it. I also stopped machine waxing unless im already polishing. If im just doing a wash/clay/wax ill do the wax by hand.
As far as price it depends on your area and how established you are. If you are in prime location and have been around a while then $180 is a little low. If you are new and in a mid-low range area id be in the $150-$160 area. Bottom line is charge what you think its worth. Factor in your cost of supplies and then how much you want to make an hour. It will make pricing things much easier.
So for instance. for the sake of easy math say you have a product that cost 5 dollars and you use 1/5th of a bottle each wash. Thats 1 dollar per wash with that product. I like to multiply that number between 2 and 4. Well say you are using 10 of those products per wash and they are all 5 dollars and you are only using a 5th of each product. Now say for the sake of easy math your time is worth 20 bucks an hour.
$2-$4 per product used X10 products = $20-$40 cost of material per detail
4 hours for job x $20 an hour = $80
So your 4 hour detail should cost the person $100-$120
There are also other numbers you could factor in like $3 for every mile over the 5 mile radius around your home or location. How much to charge for add ons things of that nature.
Now these are just hypothetical numbers for the sake of easy math. You will need to do your own values and numbers.