Was just reading the article from the homepage about the false start rule and it says the IAAF used to have 0.12 seconds as the limit for the sensors on the false start but that after they did research they lowered it to 0.10.
Conversion for hand to FAT is 0.24 (2x0.12). Should it really be 0.20 (2x0.10)? My PR just got quicker if it is! :)
It's .24 for races where the start and endpoint are different, .12 for the 400 and above. I can't remember the exact reasoning but it has something to do with being far away from the gun I believe.
I believe that all hand-times should be rounded up to the nearest tenth and .3 should be added to them.
There are too many timers out there that don't have a clue what they are doing. .20-.24 might be accurate for a hand-timer that knows what they are doing, but that's pretty rare.
nobody takes hand times seriously. IAAF don't even accept them for world records in the 800m anymore.