Tradition vs. evolution? Simple. If your selling your school (and stlyle) as self defense then you have to evolve. If Great Grandmaster Fu Man Chew's school of Drunken Alligator has as it's tradition perfected the art of the leaping side kick but down the street Sluggo's school of *** kickery has learned (see evolved) how to step out of the way and counter with a whirling hair pull then Sluggo's students are better prepared for actual self defense. Keep some of the traditions, they make it interesting rather than just "kick, punch, repeat" all day but If you want to train good fighters/self defenders you must evolve to meet the changing world.