OK, folks. Ten days after using rubbing alcohol on two bands, and after another snow storm and more salt, I washed again this weekend. What is boggling is the alcohol didn't seem to do much.
I haven't take n the photos off the camera yet but it doesn't look much different than what I showed before.

Even though I applied alcohol to the top of the door where it starts rolling vertically, there was still plenty of beading here. Perhaps all the waxes were long gone from this section and the paint itself is beading...or all three waxes are there and the alcohol did nothing. Still, the beads are of consistent equal size, not typical of all three waxes so perhaps the former.

There was no change on the vertical part, perhaps ever so slightly to the Klasse section. It seems clear to me that there is no Zaino left on the lower portion of the door (which was the most caked with salt), no Epic left on most of the door (possibly just a few inches at the top), and Klasse not only withstood the soap, even the alcohol had a minimum effect.

After spraying with plenty of filtered water, what appeared over the next several minutes was like a bar graph: A solid film of water from top to bottom of the epic portion that took forever to recede (not beading, not sheeting off), a similar film about half as tall in the zaino section (sheeting off slowly), and a very quick sheet-off on the Klasse section, with some beading left behind...less beading in the small section I applied the alcohol, but still some.

Please continue to give your opinions, but I think I can determine Klasse as the winner here-most durable in winter conditions. Zaino still holding up except extreme areas (right behind the wheel well where salt is most caked up), and Epic completely gone.

I look forward to my future testing of appearance and summer weather durability, but remember this discussion is not about that.

 

Well now you got emperical data about what Klasse users already knew. Its always good to get emperical data Its been repeated in several car detailing forums, Klasse lasts up to a year

 

I can vouch for that. I put AIO (no sealant) on my GF's Civic when it was brand new at the end of December and it still looks and beads like that day.

I've had AIO+SG on the MCS since the fall and it is in decent shape as well