I have one from the second pour that is drilled, painted, and glued. I am waiting for the glue to dry and i will turn it.
I am guessing you are talking about the top blank when you ask about the clear spot?
That is a section in the middle of the blank that has no cactus. The blanks are at or over 6 inches long, and not all the cactus is big enough to make a solid cactus blank. So, considering most of the pens we make are two piece bodies, I make some of the blanks two piece, meaning you cut it in the clear section, and turn the excess clear spot away. Then you have two half blanks that are perfect for a Euro, or slim, or whatever other two piece pen you are making!