Free parallette workout from the Gold Medal Bodies crew. I've been training using their free Ultimate Guide to Ring Training for Beginners workout and can vouch for the high quality of instruction. In about 6-8 months of ring training, I've gone from 3 pullups to 8 pull-ups, 0 full-range ring pushups to 8 pushups, and barely being able to hold a tuck sit to 7-10 sec. holds of the tuck sit.
I also have their paid Rings One program, which has a multiple-phase progression from fundamental skill development all the way to a flow routine that combines fairly challenging movement skills. I plan to revisit it eventually.
