Agree with Del Boy. Also make sure there is no money for it on the machine. In fact if anything, put up a couple of lays on it, just to push it out. Than smash it near the off. If anyone starting outting on 10 or 20ew ona double figure price horse before 11am, its the end. Because at the end of the day, those traders are there to monitor bets and if they see anything half interesting, they will get on themselves, once the trader gets on, they are marked up already and other traders will follow and there is a domino effect. Thats why sometimes connections might not have had much on a horse but the price collapses, partly due to other traders.
Another point worth noting is that, if the horse you fancy is near the top of teh market, 1st 3 in betting, might be worth backing the fav in morning, just to make the one you fancy drift even more. On a run of mill irish meeting, only about a monkey/grand is needed to lay the jolly under say 2-1. The reason is that the double figure price horses, bookies just cut them and dont push anything out, if its anything near the head of betting, they will have to push something out the other one near the top of market. The most important point though is no one, no one slips through the net, everyone has to keep their gob shut. Ideally as well, one of the guy putting the bet on, is of VIP status with a bookie, so he can put whatever he wants on. Obviously that one coup will need to recoup the losses he had to make to get that VIP status.
Afterwards, dont tell a soul.