Dart
The dart is stepping out motion with momentum - so having feet square momentarily or switching from square is what helps you launch this.
7:00 drop shift - interesting idea drop the body as you switch legs and throw.
https://www.youtube.com/watch?v=iSxn-wHHal0&list=WL&index=132&t=1043s&ab_channel=DevilDogMartialArts
Drop Shift
Domonic Cruz, Throw Jab as you switch legs and drop your head and body down to accelerate your forward motion.
Weight Drop - Footwork Drill
Drill 1
Drill2
Ground Rection Force.
Ground reaction hip - the direction of the force relative to the hip dictates whether or not you can use a leg. Understanding this is key to being able to drive forward with both legs not just one.
Step out to side and round
8:17 moves out to the side in two steps. Dropping weight on 2nd step.
Square stance to start.