So the post office lost my Superboy for two days in transit. Finally came in today. The head does suck in person. Slightly better in hand, but still no bypassing the quality of the head sculpt and other things like the eyes. Yeah he's also big, but I personally prefer Superboy to be a big guy eventually growing into Superman. So the scale is perfect for me.
I figured the Terry McGuiness head would be a good head swap til the 52 Superboy head from DCC gets released. And it's not bad, but the 52 Superman head actually works a lot better since it's a younger look anyway. The skin tones don't match, but I'm really satisfied with the final result.