Oh, sure, I do this all the time. It takes a little legwork, though. What I usually do is this: in a new poser document, import the object for the model and the outfit, with all boxes unchecked. Scale, deform, and move the outfit however I need to without messing with the model until I declare it's good enough. Export the outfit's object again, with the only box checked being "export existing groups". Crack open the original outfits CR2 in a text editor, save it under a new name for the new outfit, find the figureRes lines, and change them to point to your new obj you exported. Then, back in Poser, load up the character I want and the new outfit, and conform it. Finally, the JPs have to be set somehow, and that's the suck part. I usually have one of my Quick Conform poses around to do that. I have a tutorial in the Tutorials section on how to make one. Another way to do it would be to follow Bloodsong's Painless Conformer tutorial and put the obj in that instead of a copy of the original outfit. I bet someone out there has a better way, but this is how I do it.