Cheers RM, I had a go with the 12x loupe and a shaped down oiler, even trickier than doing the pallet stones
Time will tell if I done it properly.
Talking of microscopes, I was at SalonQP last weekend and I was talking to a watchmaker from Zenith, he was using one of these http://www.ebay.com/itm/221602073480
The clarity via USB onto a big screen was very impressive. He said that Zenith are so impressed with them they are equipping their workshops with them.
For the same price of a Bergeon automatic oiler, I think I might have to get one