I purchased a pair of pacer poles earlier this year, probably due to reading this thread. Having never used poles before, I found them instantly comfortable and natural to use. Having made a significant investment in these poles, I was loathe to leave them unattended in the albergue pole pots along the way. When we stayed in the parroquial albergue in Estella we were instructed to leave our poles in the pot outside the building in view of the street. I just couldn't bring myself to do this, and when the hospitalero wasn't looking, I quickly dismantled them and smuggled them in the sleeve of my rain jacket and subsequently stowed them under my bed. It was probably the only rule that I broke along the way. I got a little less precious about them as my journey progressed.
Having read so much about pacer poles here, I was amazed that I did not see one other pair on the
camino Frances during my walk in April/May this year.
I did have an issue with my poles whereby I found that they would gradually collapse a few inches during a day's walk unless they were screwed in place with considerable force (by someone with a stronger grip than I have), and then I couldn't undo them to make adjustments. Eventually I got a very strong guy to fix them at an appropriate height and didn't adjust them again for the rest of my journey.
I didn't use them for a couple of months after returning home, they had been left collapsed and I took them out in this condition on a recent walk and carried them under my arm until we were 'off road'. When I came to use them the sections were totally immovable and I had to ask a local householder to borrow a pair of pliers in order to free them. I mailed Heather the supplier about the problem and she told me that the poles should be dismantled between use and since I have done this, I have had no problems with them. They need no particular exertion to fix them, and none to release them.
Sorry to ramble at such length, but I wanted to point out the solution to the problem that I had, and to say how concerned and helpful Heather was in dealing with my problem. I can highly recommend both the equipment and the customer service of pacer poles.