 In 2010, he signed for Carlton Town and stayed for the 2010–11 season, scoring 17 goals in 46 appearances; a short period at Heanor Town in August 2011, where he made only one appearance, was followed by a return to Carlton for season 2011–12.However, his second spell with the club was considerably less prolific than his first; having played 26 games and scored only two goals, he moved once more to Heanor in January 2012.Making his debut for Heanor in a 2–1 East Midlands Counties League Cup quarter-final win over Blackwell Miners Welfare on 15 February 2012, Grayson scored on his league debut for the club, a 4–3 home victory over Oadby Town on 18 February 2012.