tom p.- Glad you posted pics of those three products. Not trying to start a :argue , but I'm curious why you consider the 1Z to be superior to the Wurth. Did it perform better for you (and if so, how)?
I usually LOVE 1Z products, but I did a side-by-side on two vehicles (each vehicle got one on one side, the other product on the other, with half of each trunk seal done with each) and *I* preferred the Wurth. For *ME*, the 1Z left much more residue (that transferred to the windows/doors) than the Wurth, even though I let them both "cure" for quite a while (I also tried giving them a wipe). Other than that, I don't recall any significant differences besides smell and the listed ingredients (but this was quite a while ago..I *THINK* the Wurth left a slightly more satiny look too). We all have our preferences, and if you prefer the 1Z that's cool with me, but this was one of my more carefully controlled tests (and, if anything, I was expecting the 1Z to win), so I'd genuinely like to hear back on this.
Oh, and BTW, I think it's sorta weird that they call these products "stick" and "gel stick" even though they're liquids!