Swan, nothing wrong with "leading if the lead was up for grabs". Heathcote made it public before the race the Browne would ride Buffering aggressively.
The problem, IMO, was the 2nd dig he made, when I reckon it was clear that Sepoy would not be surrendering. After all, he was giving a star colt a few kgs.
No doubt if Browne had it over he would have parked outside Sepoy in the lead. That would not have been contrary to previous rides, and it would not have impacted on the horse's winning chances.
Of course Buffering would never have won; but he could have run 2nd, and should have run at least 3rd, IMO.