I have a 'reasonable' system which involves BACKing high odds selections. Today I've noticed that the SP odds are even higher than the odds that I BACK at, which is usually what ever is available at about 10 seconds before the scheduled 'off'.
What's the 'Trigger' for BACKing at SP Odds, which I presume (by their very name) you won't know until the actual 'off'?
Suppose I could always LAY my high odd selections, then BACK them at the SP odds
