[5] He joined the CenTex Barracudas of the Intense Football League (IFL) later in 2006 and completed 88 of 170 passes for 1,133 yards and 29 touchdowns with 9 interceptions.
[6] He signed with the Odessa Roughnecks of the IFL in March 2008 after starting quarterback Dennis Gile was injured.
In February 2009, the af2 announced that ArenaCup IX had been named the greatest game in league history by a group of current and former af2 head coaches, media members, and fans.
After an injury to Kevin Eakin and poor play by backup Stephen Wasil, Colston made his first AFL start on May 22, 2010, throwing for 238 yards and five touchdowns while also rushing for a touchdown in a 56–19 victory over the Bossier–Shreveport Battle Wings.
[12] In October 2011, Colston signed with the Knoxville NightHawks of the Professional Indoor Football League (PIFL) for the 2012 season.
[13] However, Colston was also benched and replaced by Nelson after completing 38 of 78 passes for 357 yards, and 9 touchdowns with 3 interceptions in 2 starts, both losses.