Gah now I'm paranoid about the oiling again. Will put it back together tonight and take another look. There's definitely oil coming out of the pedestals, pooling on the shaft under the hold downs and oozing out of the side of the rockers. Not as much as I've seen in a few other videos I've looked at though.

The shaft is entirely symmetrical as far as I can see - doesn't look like it should make any difference which way up it goes. Tried calling Harland Sharp now but they close early on Friday.