sheetmetal 1

[NrM]

I'm a new user of sheetmetal and I'm unable to unbend a oval shape wall with a draft angle. When it's roud with a draft angle it work's,and it also work's when it'a oval without a draft angle. Is their a trick to make it unbend? I'm using wildfire 2.0 . I'm sure a ace of sheetmetal as a trick to unbend that shape.