Dr Ron,IMO if you restrict your betting to good/fast/dead tracks,then suitability "in the going"does not enter the equation.Horses that only have dry track form will rarely win if it's wet,and horses with only wet track form will rarely win on good tracks.A horse with suitable form at the distance would obviously be a better proposition than a horse with no form at the distance,all things being equal,however,having said that,horses can and do make fools of all at times.As an aside,IMO a horse is more likely to win at the distance it has proven form at,or if it is moving UP in distance,not down.Maybe Ossuldj could prove my assumption right or wrong?