When I got my Panny G5 the kit lens was quite stiff around mid-zoom. I tried a bit of grease, zooming in and out quickly lots of times and generally trying to use it. In desperation I even put an emery board to the barrel, the result of which is shown below. It's still a good lens but I don't use it any more anyway as I've got better lenses for the camera. I don't suppose it's worth a fig on ebay now as even the 10-a-penny perfect ones are cheap as chips. So don't do it. You know it makes sense!
Been a busy week. Back to work at the stables, taking mum shopping, meeting a friend, going to the theatre. I was just settling down to resize some pics for the 2013 photobook but it's such a pain of a job I've found just about everything else to do except that.