Getting the lead out, as one slogan goes, is supposed to be a way of protecting loons that might otherwise be poisoned when they accidentally pick up and eat a sinker or two off the bottom. I like watching and hearing loons. Making some minor change in my tackle to help protect them seems like a no-brainer. Note that here, at least, heavier sinkers are still legal along with lead-core trolling line and weighted lures or flies, so the necessary (by law) change isn't as great as it might be. New York, New Hampshire, and Maine are other states that now restrict lead-sinker use.