According to new vacation system if a player has a timeout in some game then 1 hour is added to all his games and this player loses 1 vacation hour. However, if this situation takes place in his holidays (usually Saturday and Sunday) then this player doesn't lose a vacation hour but 1 hour is added to all his games too. But usually days for vacations are already added to his thinking time just after his opponent's move. So, if the thinking time at least in one game is finished during player's holidays then he receives additional time up to 2 days. Thus, he has in all long time games 4 holidays instead of 2.

Usually the thinking time is not finishing during holidays. But it could finish in some game, for example, at 23:30 at Friday. The player does not make a move in this game and pays 1 vacation hour but he receives 2 additional days in ALL games. After it the finishing time in some other his games can be shifted to next holidays and so on. Thus, paying only 1 vacation hour a player can organize 4 holidays for himself instead of 2 for many months ahead.

I have found that some players had recognized it and started to use this situation already. This is important , for example, in high level pente tournaments where it is helpful to wait for moves of other players in other games before to make own move. So, Fencer must wait new proclamations from pente players.