I have heard that the Tower folks bought the rights to the Kaos, Super Sportster and Trainer series Bridi designs.
The bought the rights to every plane Bridi had been selling at the time, as Great Planes bought the entire company. Bridi retired about a year or so and started a new company, some of those planes were redisigned version of older designs, such as the Krafty trainer, the Chaos series, and the Breezy bipe. I don['t know how he got away with the Dirty Birdy, or was the original a Dirty Bridi?