OzzieMike- I can never see subtle stuff in online pix (so both yours are simply "those look good" to me), but I believe ya about how the underlying product can factor in. One of the reasons I like using an AIO or leaves-LSP-behind Finishing Polish is that I almost always see an improvement over a "plain Finishing Polish". Still sorta surprises me as I generally believed that "if it`s polished properly everything that follows is immaterial"...but seeing is believing and I *do* see a difference.
pwaug- Yeah, that "feels slick after the final wipe" had me concerned that something streak/etc.-prone was being left on the glass, something that`d end up bugging me. But nope, no issues whatsoever. Other than the issue of freezing in Winter (say, if left in the vehicle outside) the 50:1 seems about perfect. I suppose I could mix in something like IPA to raise the freezing point, but I don`t want to mess with success and I still have that Zep40.
I got mine (a gallon) as part of the "highest post-count" contest a few years ago...never gave the whole thing any thought until I came in second (behind the now-MIA ScottWax) and received a big Prize Package.