The logic is that a horses natural instinct is to run in a herd.If my selection(s) to run first are on the mark the roughy maybe will run alongside the better animals and into a place.

It has boosted my trifecta divvies several times and for me that is worthwhile.

It is also something i've had success with backing greyhounds.

Given that saddlecloth one and the favourite are usually superior animals on the day checkout where there barrier mates finish.

Throwing them into percentage tris keeps the cost down.