Obsession with school places...

For some time now I have had a bit of an obsession with primary school places, i.e. will my son get a place at the school I prefer? It seems the answer to this question is, no. This might sound sad but I am now going to desperate measures to work out whether he stands a chance of a place or not. I have used google earth to calculate the exact distance between our house and the school (30 metres) I have looked at the map showing the end of "priority one" (the end of which is out garden wall), recently I have even taken to "interviewing" other parents in our local park. "So, how old is X? What school will they go to? WHERE DO YOU LIVE?" On the advice of my friend Emma I have compiled a little table of encounters with other parents, age of children, address etc etc. I have even started conducting research regarding number of children in the area in private childcare arrangements, i.e. those who didn't apply to the nursery. My son didn't get a place at the nursery but he was 3rd in the waiting list. There are 8 extra places in Reception so in theory he should get a place, but this isn't taking into account the children who never applied for Nursery in the first place or those who immediately turned down the place. I know of one child who is his school year and lives further away than us with no siblings, BUT her birthday is in March so she was able to join after the Easter holidays in the year above and do one year and one term in the Nursery, therefore we should take precedence, arrrgghhhhh, I am obsessed......