you have to match snood length to the conditions really,if it,s a huge surf your not gonna get away with really long snoods as your rig will tangle,some days one rig will outfish another so if its not working dont be afraid to change
i think bait,hook size and presentation is more important,also actually finding where the fish are at your peg ,and they dont sit still all day either
you could write a book on it, about every comp you ever fished and still fish a beach that suprises the hell outa ya
i dont think fish can read