Classic trials may be about as fashionable as corduroy these days but I still love both, so it has been a riveting few weeks considering which of the three-year-olds may be about to take a big step forwards or may already have shown their best. People love racing for different reasons but attempting to know the unknowable is a major draw, and those puzzles are there for all involved in different facets of the game, from breeders to owners, trainers or punters. Whether through formal trials, racecourse gallops, or stable...