What is the best sign of readiness for Teaser I?

Teaser One Leg is considered the best sign of readiness for Teaser I because it indicates that the individual has developed the necessary core strength, stability, and coordination required for the full Teaser movement. In the Teaser One Leg variation, the practitioner engages the abdominal muscles while managing the lift of one leg, which translates to the ability to balance and control the upper body while the legs are extended. This mastery showcases that the individual understands how to engage the core and can provide the needed smoothness in the movement, making them more prepared to progress to the full Teaser I.

The other exercises mentioned, like the whole abdominal series or Roll Back on the Cadillac, certainly contribute to strengthening the core and enhancing flexibility, but they do not demonstrate the specific balance and control required in the Teaser. Teaser on the Spine Corrector, while useful, presents a different challenge and more support, which may not accurately reflect readiness for the unassisted Teaser I. Thus, completing Teaser One Leg effectively reflects the crucial readiness indicators for progressing to the full Teaser I movement.