This afternoon I tried what Justin does since I have the products. AA Foam as a cleaner and AA Gel as the dressing.
One tire had Megs Insane Shine that was 10 days old or so
Second tire had AA Foam that was 10 days old or so
Third tire had AA Gel that was one day old
Fourth tire had Megs Endurance shine that was one day old
The tires with the Megs insane shine and AA foam previously had AA Gel on them in the months past. There was a little build up of gel on the tires when I inspected them. The two tires with Megs and AA gel were cleaned yesterday.
The AA foam was applied to all tires, and let sit for maybe 1 minute. Pulled out an old scrub brush and just lightly scrubbed off. The fresh gels that were one day old basically desolved with the foam, while the two tire with built up gel peeled right off with the foam. I wiped clean with an old bath towel.
After the tired were wiped clean, they had a wonderful solid clean look to them with a slight gloss from the foam that was absorbed by the tire. The tires were silky smooth.
I then applied AA Gel to all four tires. Went on like butter.
Pics are of tires cleaned with AA Foam and then AA Gel as a final dressing.