Coach has some good suggestions on getting started with circles in the Skills Development forum, here
https://www.gymnasticbodies.com/forum/topic/895-basic-bucket-circle-training-tips/?hl=circle
and here
among others. It sounds like good stuff and I'm interested in giving it a go.
Is there a recommended progression in the Foundation series that should be reached before starting circles? Is anyone else training circles alongside F1 (or maybe F2...F4)?