I've been doing the calibration thinygs like the guide says, and I've gotten all 14 seconds, with 634, 627, 636, 633 and 626 delays. Is this good? Also I tried doing this on a DSi first and it didn't work at all 'cause it was next to impossible to sync it to my laptop accurately enough.
That's fine. You can try using 14 seconds and 630 as your delay. You can adjust to get the right one later. That seems like a really high delay though. I wouldn't be surprised if it goes down into the 570-580 range with a 14 second calibration.