Yeah if you mess up for some reason, LoneWolf will let you know.
I did this year already cause I didn't have the card in with the tape measure, had it in my hand though lol.
As long as you have a yellow measure tape, the card in the picture with it and the fish, picture is clear and you can see the rule, and you have one with you and the fish with the ice visible, you'll be good to go.