Assuming I'm departing KORD at 1900Z and arriving at KMIA at 2130Z on 11/18/08. I want the most accurate weather depiction from ASV6.5 for this flight plan. As I understand it, I have two options- download the historical weather for 1900Z on 11/18/08 and load a flight plan and import and use "new route" and the weather will be depicted via TAF's when the METAR time has elapsed- OR- download the METARS for 19Z, 20Z, 21Z for 11/18 and use "offline sequential playback" mode with FS time and offline mode. Which of the two options above would give me the most representative weather depiction of the actual weather during this flight time/plan? When using "new route" instead of "sequential playback", does ASV automatically update the weather by going back and getting the METARS at various times during the flight or does it simply use the TAF's for the various waypoints when the 30 minute (initial) METAR time expires? Does ASV automatically go to the saved ASV weather files in offline mode to get the weather in sequential playback mode, and get/update same based on the FS time?

Also, if I choose to use "offline sequence playback" mode, does that mean I need to check the "enable offline sequence playback" option and make sure to uncheck the "TAF processing" option? And vice versa if I choose to use TAF processing mode I need to have the "TAF processing" option checked and make sure to uncheck the "enable offline sequence playback" option? In offline sequence playback mode, does the weather get updated only once an hour when FS time aligns with the downloaded and saved METAR time(s) and that no TAF weather is ever used?

Hi,What a mouthful you wrote!!1. Most accurate is to download all the files you might need and use Sequence Playback.2. TAFs are used when the TAF time is more current than the METAR time.3. Yes, Enable Offline Sequence Playback must be checked on to use multiple downloads. The TAF option does not come into play.4. No, updates will be made according to your Update Interval, but it might read the same file over and over again until it is time to change files.If I have not answered anything, please let me know!Thanks,Jimhttp://www.hifisim.com/banners/hifi-community-sigbanner.jpghttp://www.hifisim.com/