Ah, yes.  Good to mention.

Although you can scale the final rigged figure, it makes things simpler if your figure is close to 100% scale and zero position as rigged.

I usually make a "scale and position" pass at some point before the final import just before spawning.  It also gives me a last chance to check for reversed normals, bad materials groups, uncreased edges, and other mesh errors.  When the raw mesh renders correctly in Poser, I export it one last time to "freeze" it in Poser scale and position.  When I re-import, then I can comfortably spawn props knowing that they, too, are all properly zeroed.

BTW, a very useful little tool to have is this caliper:

http://www.sharecg.com/v/31396/Poser/Scale-Caliper-for-Poser

If you have real-world measurements for your model, you can check them against this handy tool.  For my current set, I built everything to scale in a different application, and I only have to make one known dimension fit in Poser to know the models are accurately scaled to the universe and to each other.

Err... This link might be better:  http://forum.daz3d.com/viewtopic.php?p=1113320&sid=90727b1ad32e10ad7429d7fe89e34dcf&flatnum=1