When the flats get windy and the fly is bulky, a line with a short, heavy head makes life simpler. Scientific Anglers’ Mastery Grand Slam is a tropical saltwater floating line meant to load fast, push tight loops, and turn over big saltwater patterns. The head is 40.0’ / 12.2m on every size we carry, with a 100.0’ / 30.5m total length. Scientific Anglers overweights it by .75 sizes, so it will feel stout on the front end compared to a true-to-size line. It uses Scientific Anglers’ Tropi-Core™ technology for tropical conditions.