Now is there any way of modifying Terrain Mesh Scenery? I have just downloaded the mesh available from this excellent site here http://www.simviation.com/fsdterrainsrtm.htm, and it is by far the best I have seen! But its still not quite right on Anglesey, north wales! See I work at RAF valley, so that is one of my favorite areas to fly round (bit sad I know) but it seems like the hills and 'humps' arent quite high enough. ie the snowdonia range is pretty small in the sim but its HUGE from where I stand on the runways!
So is there a way of editing it? I'd be more than happy to share it

Thanks
Paul