Hi Jim
There is also, or used to be but it is avaible in some shops 40+ Cold Salt Water.
The head length is a bit shorter - only 9.1m, running line is blue, intermediate and done in "ridge" technology, which is not the best idea for beach fishing, as grains of sand seem to stick to it easilly. It comes in Intermediate Clear an Di7 only.
I had 40+ expert and... there is no comparision between them. CSW shoots like a bulet, and handles big flies in really good maner.
The head seems to be a bit overwegiht compared to standard 40+.
What is interesting, Cold Salt Water comes also in a "double hand beach line" which is a perfect tool for switch rods. They have a bit longer heads - 10.6 metres and come in the same densities as their SH sibling. Line marked #9-10 weights around 26-27 grams and one #11-12 is around 34 grams, so first suits a modern, fast switch rod in class #7, the second is good for heavy switch rods #10. I used both of those lines - first for beach casting, fishing on large rivers in Poland and fishing for huchen, secnd exclusively for huchen fishing, as it was a really heavy line, capable of carrying flies of almost 25cm length, very large, on huge, 8/0 hooks.
My idea - those 3 lines - cold salt water, are rather designed for american market and fishing for stripers, but, they work as good on our side of the pond.