I checked another month on the original system which produced two winners and a LS profit of 11 units.
That's 92 units profit over 6 months.
I'll continue on until I've done 12 months.
Both winners, Sportz, had won at the distance.
Please note that I've made a minor amendment to the original post eliminating races where 3 horses qualify. It's only happened 2 or 3 times in the six months.