I too have no official time recorded - just rung the vlm office and the girl said the chip had probably failed "due to the huge number of chips in use" ??? they would look at the finish line footage and post me a time MINUS the 25 mins it took to cross the start line (I was in blue pen 9) so I'm fairly happy with that. I did all the splits on my own watch so I know what I did!! Interesting theory with the magnets though.