thank you :) i think it mostly comes from my love to jump, leaps and leap highcuts were alwyas part of favourite aspects of highland. one part of it is defintely flexibility and the other bti id say is the mental aspect of knwing exactly hwo to maximize your ability to do a leap.
i guess its then gettign stronger muscles in your thighs..also, you might want to try and leaping and think about your upper body, if it straight its much easier to jump than if you lean forward which people sometimes do thinkin they will get a bigger split. keep your body straight so it will straight up in the air and your leap will look bigger :)