We did Jedi training during our last trip in October. I made a pre-park-opening ADR at Hollywood and Vine, to make sure that we could sign up before rope drop. Unfortunately, the bus from Animal Kingdom Lodge was 1 hour late (!) and we missed both our ADR and rope drop. I grabbed my son and ran for the bag-less entrance a soon as we arrived, leaving my husband behind with my daughter, bags, and stroller. There was already a long line when we got there and we had to wait a good hour or so, but were still able to sign up for the time we wanted in the afternoon (all the morning spots were already taken). I think you'll be fine if you arrive at rope drop and are flexible about the time slot you want.