I thought it might be helpful or advisable to include a copy of a post I have put on the VatSim forum as follows:Copy:Some time ago on a similar post to another forum, I received replies that other pilots were useing SimFlyer airport scenery with no problem for VatSim flights, however:In observing MSFS9 Air traffic, and/or locating an aircraft directly to a specific runway (MFFS9>World>Go To Airport>Active Runway or a selected runway), I have noticed that at some locations, there is a slight difference between some default MSFS9 and SimFlyer taxi strips, gates, and/or runways. Usually, this is only by a few feet and/or a slight variation in the runway heading. It might be applicable to mention that this is so on some other third party scenery as well, however, my question is primarily concerning SimFlyer airports.I would not be surprised if SimFlyers is more accurate from a real world perspective, but I fear that it might be causing confusion between my location and VatSim ATC as such situations may look like I am trying to taxi or takeoff on the grass adjacent to where I should be assuming that the VatSim controller is looking at the MSFS9 default scenery.I thought it best to see what VatSim, particularly Controllers have to say about this. Would it be preferable that I disable the SimFlyer Scenery and use default MSFS9 airport scenery for VatSim flights, or does useing the SimFlyer (or others for that matter) cause no problem for ATC?Thank you, and I hope the answer helps somebody else as well.RTH

>I thought it best to see what VatSim, particularly Controllers>have to say about this. Would it be preferable that I disable>the SimFlyer Scenery and use default MSFS9 airport scenery for>VatSim flights, or does useing the SimFlyer (or others for>that matter) cause no problem for ATC?Its not the big a deal really. Add on scenery differences have been a problem almost from the beginning with Vatsim/Satco. They just deal with it now.I recall the same issues with Wilco's 'Airport 2000' packages. You'd see the aircraft moving along north or south of the Localizer. The pilots is established on course in his scenery but on the Controller's display he looks slightly off course.In general if the Vatsim Controller see's your target is moving basically on the right path in most cases they will just accept the difference is likely due to local scenery and not worry about it.The difference is usually only slight anyway. Though adding a note about the scenery offset in your Remarks field wouldn't hurt.Regards.Ernie.

Thanks for the reply Ernie:I would think that some of what the controller sees might be downright humerous.I have been including a "SimFlyers" notation in my last flight plans as you suggested.Other replies pretty well concur with your evaluation.Thanks again:RTH