In this TDN series, we curry lessons and wise counsel from veteran Californian figures who, like gold nuggets panned from the Tuolumne River in the High Sierras, have unearthed career riches on arguably the toughest circuit in the States. The series started with John Shirreffs and Art Sherman, and continues here with Eddie Truman, who announced his retirement last month. The land around Mulvane, Kansas, has been flattened as though by some colossal steamroller, and the vast, leafy battalions of maize and wheat and sorghum stretch outwards on and on...