Nothingness: I still don't think you understand how the fischer clock works. If you move 10 times a day, you DO get credit, and you will NOT time out if you leave for a couple of days. If the time control is .../0.6/... (which is very fast) and you respond immediately 10 times in one day, you'll be credited 60 hours. If your opponent responds after one hour 9 times that day, he will only be credited 45 hours. And if you make the last move in the evening, you won't lose time during the night, but he will.

As for going away for 2 days, the 60 hours you saved should be plenty of time. But on top of that, you also have your initial time (the first number in the description of the time control). if the time control was 7/0.6/..., that means you have 7 extra days that you can choose to use now or later, plus the 60 hours you saved which you can also use now or later.