What you refer to is what I have been doing. Still the same problem. For example, if I draw a new line, which is now highlighted, and go to inspector, I can change the pen weight and see the line get thicker or fatter depending on the weight I choose. However, if I try to drop the pen weight below 1 pixel or 0.02", the line weight always stays the same. I can increase the pen weight, i.e. .02 to .032 to .04 to .05 and watch the line get thicker and the same for pixels, but going below 0.02 to say 0.016 does nothing, as does going from 1 pixel to 0.5 pixel. Same with setting the default. When I set the default below 0.02" of 1 pixel, there is no change in pen weight.