With fixed odds to get top fluc and a minumum price you have to bet half an hour before the race.How do you know whether to take the risk of the horse being 4/1 or under or risk it drifting and getting better value with das divi-plus.I say this as I have read many posts about what price is better with the bookie and with the tote, I think $5.10 and under was better with the bookie and over that with das.Is it possible to cancel your bet with the bookie if you can get a better price on the tote.