Thanks mate. Yes it was neutral wax, and indeed it was wax (seemed like beeswax to me, in terms of texture and consistency, all gone now!).
Edit: A good 'just before waxing' shot:
Here are my Viberg boondockers (their first release on the 110 last), a few weeks of wear, just before I waxed 'em:
Here's some fresh pics after quite a lot of walking yesterday: