If set to True, the data stored in the ElbowConversion property at the Project level is written to the Drawing definition file. This data is used for Cut list calculations when Elbows have been converted to Bends in SPOOLGEN.

If there is data in the ElbowConversion property, then this property must be set to True, otherwise any Cut lengths could be wrong.

When importing a style, if the DDF contains a STANDARD-BEND-LENGTHS entry, the ElbowConversion property is set and the UseTangentData property is set to True.