Here's Dragons announcer Mike Vanderwood talking about Mr. Cueto on MLB's Around the Minors:
Starts about 38 minutes in, runs until about 46 minutes.
Vanderwood compares his control to Greg Maddux and mentions Mario Soto working with Johnny on a circle change in spring training. Johnny Almaraz signed him out of the Dominican based on watching him in a pickup game.
Mike also talks about Paul Janish, Jay Bruce, BJ Szymanski (described as "interesting"), and Travis Wood and his great changeup and 88-89 mph fastball (told you).