Posted By:
Andy BaranHal,
You're welcome to get in touch with Mark if you'd like. He usually won't look up and give out this type of information, and I understand why, since he literally has hundreds of thousands of images on file.
Even with this information, it wouldn't actually prove anything since the sample is too small. However, it would still be nice to know.
By the way, I think the Creighton is blank backed.