Look at Jarrod’s post a few pages back where he shows the inside of the joint. You cannot get a liquid to the surface you need to easily. It’s inside the part that is cracked for some people. The pin hole you’re talking about doesn’t affect the rotation. You can definitely access the joint but getting the liquid inside may be difficult. I’m on my third round with Kiki and I’m putting it on all the places you mentioned just in case it helps. It appears to be working but it may take 4 or 5 coats. Also if the boss is cracked you will need to superglue that first before adding Future or Kiki. I superglued the crack and kept rotating the foot for a few minutes to make sure I didn’t glue the foot in place.