Practise game for this unit.
Click on the bowl.
Use a fixed reference on the bank or beyond.
* prevents green guessing
* allows adjustment in shot play
* ensures the body alignment is square to the delivery line.
Establish the focus point, approx 1/3 - 2/3 along the aiming line.
May I recommend the following 7 minute video. It features Jo Edwards and Shannon McIlroy demonstrating the basic bowling technique – grip, preshot routine, standing on the mat, delivery and follow through. It is well worth viewing multiple times.