very indepth records, like kenchar says you wouldnt have time to bet,
you could use last five or ten runs, 6572654112 eg and a touch of late mail, if i looks ok in the ring and the odds are on YOUR side, bet on it.
Ive looked at lot of races and can often think that my nag is unbeatable, ie THE top trainer, THE top jockey, THE best Barrier (which i believe there isnt) THE best recent form etc, do i bet on it, well it depends on what my gut says,
Cheers dingo