When spraying textured monorex how can I avoid the horizontal scaffold marks? Job looks mint until scaff moves and can see shadows where its been. Next tip is for masking up...taking forever cleaning using normal plastic and masking tape. Just started to use the blue stuff and orange tape. On windows is it best to mask right tight to the frame and stanly afterwards or is it best to leave approximate 10mm gap for the render finish?? Cheers again for any help.