Hi mcbee.
Spoke too soon, in the 15.40 at Fontwell, the selection chosen was "Overclear" which was not the SP favourite, all other races so far though the selection has been the correct one, this was happening with the triggers I was trying to do too. I have change some thing with the trigger you made but don't see how this could make a difference. I have attached file for you to look at anyway.
Cheers,
Graham