I seem to recall someone providing what percent to scale things when creating them in Carrara, saving as Wavefront OBJ file and them importing into Poser, so that they show up at the right scale.  The reverse would also be good to know so that if you save from poser as OBJ file, you would know what to do when you imported it into Carrara so that when you saved it back out and imported it to Poser it would be the same size as when you exported it.  I have been experimenting but have not hit on the right combinations. 

Thanks

Dan