Hold single isometrics for 15” or up to 30” for increased range-development, alternatively working for iso. reps (eg. 5x 5” or 6x 5”) entering/exiting the forms. For touches/walks, go 3-6x each side.
To regress, reach higher up the leg or touch an elevated block, firstly releasing the hip-flexors as you reach & then tension in the thoracic spine to extend further, equalising load evenly across the global form.