Whatever works for you is what I want you to use. If you're happy then I'm happy.
The reason I use the #7 first is fully explained here if you want to read the article.
The Secret to Removing Oxidation and Restoring a Show Car Finish to Antique Single Stage Paints
Here's the key paragraph notice the word
important...
What to do
If preserving the original paint is
important to you then the first thing you want to do is condition the paint before working on it. Most people just jump right in and start rubbing some type of abrasive compound over old, dry, fragile paint and this will remove a lot of paint quickly and possible remove too much. Instead, take the extra step of conditioning the paint and bring it back to life with product that's been around since cars and thus car paints have been around.
And I'm 100% positive had I taken a
wool buffing pad on a rotary buffer to Wayne Carini's 1953 Hudson it would have removed so much paint there would be primer showing everywhere.
Wayne Carini 1954 Hudson Hornet Original Paint Restored by Mike Phillips
This car has the original paint it it was IMPORTANT to Wayne to preserve and protect it as he did not want to repaint this car.
It's hard to see in this picture here but where the yellow outline box is there's a thin spot showing black primer.
Here's the same spot from a picture I took with my iphone...
Close up cropped out of the original...
I take great care in restoring original paint on other people's classics.
But each person can find what works for them and go for it!

rops:
Dear Mike, I seen in your link where you checked paint thickness on the 1954 Hudson Hornet, the one was 2.6mm the other 1.8mm is it before & after or only some area where paint was thicker?
You know in Israel to paint a single stage classic cost a fortune, can be 7,000-10,000$ per car Caddy or Hudson size when using the original paint formula, new/old paint.
I would like to know how much it cost in USA to paint such cars from the 50's with original paint? I ask it because in my opinion if for the car owner the original look is very important, why they polish their cars instead of just giving them a new life with new/old paint? It comes to price for the new paint, or there is another reason they polish instead of paint? I think the only reason is the price, because if I had to chose: renew old dead paint for 500$ (this is about price in Israel for a single stage paint to be polished, waxed, chrome made & all exterior renovation) or paint the exactly the same, original paint, I of course would chose to paint Hudson Hornet, no polish can be compared to new, original paint.
So what is the price in USA to paint such cars (only the original paint), I think it's much less than 7,000-10,000$ in Israel.
My other question: How much it cost in USA to detail a new cars & old cars?
In Israel people who use only the best car care products charge for new cars 200$-400$ for old cars (the market is very, very small for such old cars here, you barely see once a month some Cadillac will pass by, to see old Rolls-Royce or Hudson Hornet one must wait years) 400$-800$ because they are double in size & so much chrome compared to new cars. I use only the most expensive products (most) come direct from suppliers in Europe through I made contacts at Automechanika Exhibition in Frankfurt am Main (Mike if you will be there in 2014 I would like to meet you) but others use the cheapest Turtle Wax, Car Magic, Formula1, ArmorAll, STP, CarPlan etc. very rare to see even Sonax.
Meguiar's, Menzerna, Wolfgang's (they are available here) you won't see in any car wash (most polish&wax is made at car washes here), people who buy such higher quality products are car enthusiasts, pioneers.
I use only the best & most expensive products from Switzerland, Germany, Austria, France, Italy, Finland some UK & USA because I love what I do, I can't imagine using Turtle Wax in this oval box like shoe cream on a new 2K clear coat, but this is a standard here.
You say lambswool pad can't be used on old paint? But only the finishing/waxing pad (black, blue) is softer than lambswool? You mean even at low speed polishing machine it can't be used? Why?
Look here is one of the companies I buy from them, there is instruction in the video about single stage paint by using medium polish & wax in 1 product (nano) & exactly lambswool pad: look 4min20sec
https://www.youtube.com/watch?v=n50d2aAQZAU
:coolgleam: