Hi all & thanks, GT182, I think this problem is with Jases overlay tool as well, please correct me if I'm wrong, but yes the same problem
may exist! since I have actually changed the size it may not be quite so pronounced, then again it may be worse,
let me know please, including details, as I may be able to skew the protractor readings to read correctly.
In the meantime I will scan in a new 360 degree protractor & overly that to check if the readout is correct or not.