I have tried to gather all the timing measurement that has been done
during last run in one internet page.
It is quite dense, but I hope this could be usefull as a support for
further developpement of this issue.
the adress is
http://www.cebaf.gov/~anciant/DSD/Time/PhotonTiming.html
If something is unclear, or seems uncorrect to you, please let me know,
regards,
eric