Use a 2-to-1 training-aid-to-ball rep ratio
The instructor suggests using a ratio of training-aid reps to balls hit, starting with a two-to-one or three-to-one ratio (training aid to ball), which she says seems to help the motor pattern better. She notes it is student specific and not a hundred percent for everybody.
Channel: Mark Immelman
Watch official source at 7:06Why this context matters
From a discussion about how to use training aids productively rather than hitting ball after ball.