Anyone have experience solving the following problem with NR Campagnolo barend shifters: after removing the locknut, the screw will turn about twice before it tightens so that to continure turning it will damage the slot in the screw head, thereby making it even more difficult to turn. I have an appropriate sized screwdriver too. I was able to get one off, but the other is far more stubborn than the first. I have soaked it in "Goop" to no avail. And the one that I did remove, even out of the handlebars, it is difficult to turn, and does not show any damaged threads on the screw or the thingie that it screws into.
Help please.
Thank you.
Tom Hayes Chagrin Falls, Ohio "Eleven inches of snow today" USA