Definitely "latest" build is my favorite. I am keeping 055 as my "base" comparison. I am using MCX to convert my FSDS aircraft models to gmax (via 3DS format conversion). On the latest beta build (download 23NOV) the import into 3DS/ gmax goes without problems. Texxture mapping information is preserved, and all I need to do is "pick" the material and apply. The "unintended consequence" of the conversion is that the part names now all begin with a number "01_LOD100" "02_LOD100" etc. OF course, when re-exporting as an aircraft MDL, the exporter issues a warning for each object/part that it will be replaced with "X01_LOD100" "X02_LOD100", etc. This is NOT a show stopper (for a project with a small number of parts). My work around would be to develop a script to rename all parts starting with a number to add an initial letter. (My other issues are gmax modelling related, not conversion issues)..