Bhagwan
if the odds are too small then you run the risk of putting too much on the back bet which is counterproductive in 65% of the races. If the odds are too long then there is too few lay bets to come out in front. Again counterproductive. Having said that on tote the majority of races have the fav between $2 and $3. The idea is to set up 2 bots, one backing and the other laying in the price ranges and forget. Should cover 60%+ of the races.
Beton