I have tried both the methods as described above, each way is a lot quicker than the old way I used to create elevations (without using viewports), however the problem with having a black and white texture then using "final quality rendorworks" is that even with the "accuracy" at 100% and the "fuzz" at 0, the lines don't look nice and crisp. I have refined all the settings available (eg scale, factors and line thickness) but still cannot get the desired affect. The problem with using polygons traced over the "live viewport" in annotation mode is that the elevation is now not really live and still requires editing when changes are made. I know that there is always going to be some editing required but would have thought that having crisp hatches on elevations that are live would be an easy process.