Hey Matt,
first of all welcome to the forum and great photos!!
I think your photos are pretty good exposed, perhaps 1/3 stop darker, but I wouldn't change too much.
I personally like it that you still can see detail and that the persons aren't dark silhouettes.
My favorites are the 2nd one of your first post and the 3rd one of your second post(btw that one is begging for HDR[:P]) The thing about the first photo that I don't like is that the second surfer is cut-off.
I would recommend you to do a little post-processing if you know how to. Andy, I like the idea of your edit, but I think it's a bit over-done. In my opinion it's too saturated(orange) and as I said before I like to see a little more detail in the surfers, but that's a personal favor.
Jan