I just drew a cylinder along the wall of the little part and diffed it. I can make a video to show how i did that, but lets wait for Ostexo... his may be more elegant. He's a good designer.
What can I say... thank you ever so much for taking the time to make this video. It is immensely helpful!
You know it still amazes me that people such as yourself give your time and put so much effort just to help others on this forum. I for one am so grateful.