released on the condition that he could not work for rival promotion World Championship Wrestling, which was then luring wrestlers away from the WWF with the promise of larger salaries. Polaco was instead sent to Extreme Championship Wrestling as part of a talent exchange between WWF and ECW. Extreme Championship Wrestling (1997–2001) Undefeated streak and various feuds (1997–1999) Polaco joined ECW under the guidance of booker Paul Heyman, who promised to make him a star. He debuted in ECW as "PG-187" in a loss to Chris Candido on August 21, 1997. He later resumed his "PJ Walker" name. At As Good as It Gets, his character was repackaged as he shaved his head and switched to a grunge style of dress, and adopted a cocky, sneering, egomaniacal attitude. He was introduced by Jason Knight, who named him "Justin Credible" ("Just Incredible"). Credible defeated Jerry Lynn by debuting a new finisher called That's Incredible. He began an undefeated streak which included a notable win over The Great Sasuke on the October 24 episode of Hardcore TV. Credible suffered his first loss in ECW against Mikey Whipwreck in his pay-per-view debut at November to Remember. Credible continued his rivalry with Whipwreck, beating him in televised rematches on Hardcore TV, while losing again at Better Than Ever. Credible quickly became a rising villain in the company and adopted Nicole Bass as his bodyguard. He began his next major feud with the company's veteran Tommy Dreamer in 1998. Credible defeated Dreamer in a first blood match at February's CyberSlam pay-per-view but lost to him in a match at Living Dangerously. Polaco was attacked by his returning nemesis Mikey Whipwreck after the match. The two resumed their rivalry as Credible defeated Whipwreck at Wrestlepalooza. During this time, Credible began a high-profile feud with Jerry Lynn as he lost to Lynn at It Ain't Seinfeld. Credible defeated Lynn in a two out of three falls match at A Matter of Respect and in a standard one-on-one match at the Heat Wave pay-per-view on August 2. In the fall of 1998, Credible renewed his feud with Tommy Dreamer. He joined forces with Jack Victory and Rod Price against Dreamer and The Gangstanators (John Kronus and New Jack) in a Philly Street Fight at the UltraClash event, where his team lost. Polaco and Victory lost to Dreamer and Jake Roberts in a tag team match at the company's