<HTML>Tuned a Baldwin Acro yesterday, which had two sticking keys, b3 and c4. The problem was a sluggish jack on both of them. I used Protec on both, which freed b3. But C5 was still sluggish. What to do, what to do. I didn't want to remove the whole action just to repin one jack flange. I took a pair of needle nose, and squeezed the center pin. Didn't work. I tried again, Didn't work. I sat there, contemplating what to do next. I though, what the heck, let's try it again. It work. It freed up the jack. Now if I can only figure out what I did, and why it worked, I can pass this trick on as a tech tip. Any ideas? Wim </HTML>