I was collecting a bookies price and tote prices but it isn't openers. Its just before the race starts.

Final price is by far the best indicator as you have stated. Many of the successful syndicates use final price very close to the jump and make adjustments based on form analysis they have found to be useful. In these ways they can try and create slight overlays in the final odds prices and only take those that are a very small overlay.

They make big money long term ... so if I was you and I was going to start looking anywhere it would be around what they do and basing my ratings on slight adjustments and placing the bets in the fixed market on the overlays.