Another interesting thread! With some less interesting parts.
Over the last few years, I've been trying to do the mounting yard thing at the Woolamai picnics. I had a regular routine: collect after the previous race, jot down the opening prices, keep in touch with the tote and the bookie boards until the horses rolled into the yard and then try and assess the fitness of each horse. I did it for every race for years. I don't think I got any closer to picking a winner. All I did was get a little better at picking horses that probably couldn't win.