I've put paste Souv over #26 and it looks different, so my guess is that you'll see a difference with LS as well.
Give #26 its due though, on appearance. At first I thought the Souv was better, but now I think it's just different (not one over another, but each one alone). It's like, do you prefer a German pilsner or an English ale? Well geez, they're both a pleasure, but sometimes I want the ale and sometimes I like the pilsner.
Also, the LS doesn't last very long. A month here in the northeast, tops, on a garage-kept car.
Tom