[3] It was R. L. Underwood's linebreeding program to preserve the Copperbottom bloodlines[4] that produced Cutter Bill, a 1955 palomino Quarter Horse stallion, AQHA registration #53703.

[3] Cauble broke Cutter Bill himself, and for the first couple of years used him to tease mares in preparation for breeding them to his foundation stallions.

Bennett showed Cutter Bill to earn 1959 AQHA High Point Junior Cutting Horse.

He was later trained by Willis Bennett's older brother Milt, who owned and rode Snooky to win the 1955 NCHA World Championship.

[3] Other trainers who rode Cutter Bill include Connie Wills, Roy Huffaker, John Carter and Tommy Arhopulous.

In 1964, Rex Cauble showed Cutter Bill in the non-professional division, and won the 1964 NCHA Non-Pro World Championship title.