For years I have approached my handstand in the wrong way. I have to teach a lot of terrified adults to handstand, and many find it easier to begin with their hands on the floor. This means that one leg is “long” behind, and the other leg “curled up”underneath.
The tendency is to use the long leg to swing up. Ive been doing it for years, but it makes your handstand erratic because as it swings it moves you into an arch, often meaning your foot is forward of your hands when you attempt to finish it. It also means you are throwing yourself into the handstand rather than place it .
More seriously, if this pattern is taken into the round off, the lead leg zooms around, and the real power leg is de-emphasised.
See if you have this fault and fix it
Try adding height. As you see I have other issues but this gave me the time to bring my legs together and begin to lift my chest