Brilliant fields for the Hannon Memorial meeting couldn’t have come at a better time.With the future of regular Otago harness racing in the balance, Oamaru is set to put on an outstanding show on Sunday.Check out five horses from a stacked card that racing journalist Jonny Turner has his eye on. Franco Light – Race 3 | 1.36pm This emerging trotter could barely have been more impressive in his first two starts at the races.He worked early in his maiden win at Addington before charging home late in his last…