Testing would be interesting just as we have shortened game time with shorter controls. This would allow the benefits of a fighting tournament. Last round draws to split the money would have to be considered. Top players agreeing to draw to fight weaker ones or to gang up on players from other countries as Fischer complained would not be as enticing. This also forces a player to decide on a more aggressive line versus a drawish variation.
People like to have a winner and a contest decided than a draw.
See Geurt's reply on an illegal move corrected by the arbiter who does not have to wait for the player to complete the move by pressing his clock. This would maintain a consistent approach and thinking if it is not changed. I have also witnessed a player making a blunder with plenty of time left and just sit there waiting for time to run out. This is controversial, but when clearly not in the best sportsmanship manner, would allow the arbiter to ask the player what is he waiting for and imply he should press the clock to continue the game. When there are two rounds in a day, this would keep a player from delaying a round by not pressing his clock.