Hi md_1,
This has been discussed quite a bit in the LabVIEW forums. Instead of trying to sum everything up, I think the best thing is for you to check out this thread which has lots of great information on timing in LabVIEW. Although the thread mentions LabVIEW 7.0, all the information is still relevant.
Please take a look and let us know if you have further questions. By the way--you'll have a lot more luck getting replies to this question if you post in the LabVIEW section of the forums.
Good luck!
Megan B.
Applications Engineer
National Instruments
