So practice is - 9 stands 9.99m back and starts his run up. Hooker times his throw so that as the 9 approaches 2m away from the line the ball leaves his hands and the linout begins. The 9 - now travelling at speed - can get into the line in time to take a ball - or be a dummy for a long throw?
If he doesn't take the ball will he be in danger, down to momentum, of going through the line of touch and becoming offside before the ball is touched. If so would that offside be material?
Do our resident coaches like this notion? If he did take the ball then he would certainly be a threat, and likely to burst clear - though the lack of surprise may mean he is met with a pair of fat blokes standing in his way... so the dummy could be a good ploy... but offside problems as mentioned....?