Slinker also taught Yoshukai Karate under Mike Foster, coaching his fighters in the Battle of Atlanta (1976) among others.

[2][4] While competing in Tennessee, he challenged Jerry Lawler for the Memphis version of the NWA Southern Heavyweight Championship on April 10, 1978, but was unsuccessful.

[2][6][7] After retiring as a professional wrestler in the early 1990s, Slinker managed Ron Bass and Robert Fuller before becoming a promoter and booking agent in Florida.

He also introduced Szatkowski to Japanese promoter Giant Baba and helped him find work in World Championship Wrestling.

[1][2] While working for the United States Wrestling Association, Slinker also helped train such wrestlers as Flex Kavana, who later gained fame as The Rock.

[1] He also had a stepson, Dennis Knight, who has competed under the ring names Tex Slazenger, Phineas Godwinn, and Mideon.