You're right - the eyes are not good detectors. A lens like that looks thinner than it really is when just looking through the front, and that's why the haze - whatever it is - appeared to me to be somewhere between the elements instead of on the back. It's even harder to tell from the pictures. There are no bubbles whatsoever, only some dew spots on the front surface.

I'll follow Roland's instructions to a T when cleaning it next week, and will definitely post a picture or two. Thanks, everybody!

Jono