Hi Michael,

Her are some notes on v4.

PDF export crash report
Mac Beta version crashes on my side when exporting a rectangle to pdf.
I tried on OSX 10.9.5 and on another machine on 10.12.6 and both crash.
On win 8.1, with Parallels, it exports fine.
On Mac version 3, it also exports ok.

Artefacts subject
On another side, I would like to add to the recurring display artefacts subject.
While I appreciate the display speed when working and can live with its side effects,
I often use MoI with a projector to quickly demonstrate geometry and moldmaking concepts
and it would be nice to be able to temporarily toggle to display or snapshot without artefacts.

3D view rotation speed observations
Also, I find that in 3D view space rotation and zoom in/out seem slower in v4 ("bumpy"?) when the grid is visible.
Much smoother when grid is masked or when using Parallel (isometric) view.
However, in Parallel view, display artefacts are more apparent.

Globally, I really enjoy working with the new version and am looking forward to use dimensions and annotations.
Thanks for all the attention you are giving to the user experience!

Michel