Crazy IMO. Open to exploitation. Eg London To A Brick is tailed off and knows he is going to run last and get 1pt (guessing here) but he knows that the horse that runs the fastest Last Q and Last Half can get 3/4 bonus points (not sure which) so he goes ever so slowly until the 800 then builds it up and burns home to elevate himself to the equivalent of finishing 5th last and a rough chance of still making the final with a good run in the 2nd round