For those of you who messaged me about this... here are some photos that should answer your questions.
Am I concerned about the highlight on the top of the head and shoulders? No. If this were a commercial job where you simply want white BEHIND the product, I wouldn't use this lighting set-up. It'd light the white seamless directly to avoid spill onto the product. But for people photography I don't mind the spillover... as long as that light isn't too far forward that it reaches the nose.