When you lock up the board in dominoes, next hand, does double 6 go first or the player who dominoes last?

I know that who ever has the fewest dominoes gets the points, but on the following hand, who goes first? Is it the player with double six or the last player to have dominoed?|||The one with the highest double goes first at least thats the way I play|||totally depends on what version you play if you play mexican dominoes and double sixes you play doubles sixes first then double fives next round and so on and it goes with who ever has that dominoe in their hand at the start of the round or who ever draws it if noone has it|||Double 6's start it off|||The player who has the highest double goes first. Do NOT draw extras to get the dbl 6.|||double six. it's like the start of a new game when the board is locked. no one has the advantage. If no one has the big six, then the next highest double is lain.|||double six.....|||If you are the person who locks the board you go first.