Why can't I get the rotation on my 1/2 twist?

Question

I'm talking about my 1/2 twist for tumbling

Answer 1

Ok well when your on tramp jump and warm up a few layouts. Then once you layout and land half turn. Then try layouting but when you are in the air and you spot the ground quickly half twist before  you land. it just takes practice practice practice. The full is the hard part. once you get used to where you rotate twisting 1/2 isn't that bad

Answer 2

what sport are you talking about?? i need more info before i can answer