Most people don't know how or where to fish the Lamar. You would be amazed at where these fish are caught. I use a 3 weight rod with 7X tippet and you have to be real careful to not break fish like these off.
The water is Gin clear where these fish are and they can take a long look at your fly before they bite. You need to have good polarized glasses to see into the water and be able to watch the fish. There are lots of times the fish will come up, look at the fly and go back down without making any sign.
When I know I where the fish are, I fish to that particular fish, and if they turn down a fly several times, I change to a different fly and do it again. People will say Cutthroat are stupid fish, but once they get fished this much and get that big, they are no fools...