Getting perspective in Xara drawings

[Albacore]

I find Xara's isometric grid inaccurate so made up my own using blends. This is a basic Iso. grid and is near as I can get it for A3 paper but it is a custom page so that it doesn't matter wither it is landscape or portrait it is covered. Everyone is welcome to use it how they want as now I use Illy's grid for 1, 2 and 3pt. perspective and it has the benefit of molding 2D objects onto the perspective grid with ease as it is more than just a guide layer.