Not sure what that means exactly in the way of performance, but I'm not giving up just yet. Trying to reach out directly to the manufacturer in France at the moment. There's always someone (tech/designer/employee, etc...) somewhere that stocked up on hard to get items as they were being fazed out. It's usually just a matter of finding the right person to ask the right question. For now, I'll make a couple inquiries at PSI about the possibilities. Thanks again for the suggestions!