I'm getting OK results from entering losing hores from this method into a black book, and backing those which run within 17 days for a place - shows POT (place).
Today's candidates are (Place only):
Port McQ 5/1 and
Port McQ 6/1.
Don't like top weights on a Slow track, but at least they have a claiming apprentice on 6/1.
See how it goes for a while.