Well, this didn't turn out how I'd like, it was supposed to be a build along. For some reason all my photos won't upload. If I can figure it out I'll add them later. The brush is a Semogue SOC. 1) I chucked the SOC it in my lathe and cut the knot out. The green tape is just to keep the knot from fanning out while it's spinning on the lathe. 2) I cut the cup off the knot with this dremmel attachment. 3) Used a screw driver to pop the metal cup off and now have just the knot. 4) Now is just like an ordinary knot. Select your handle, drill it to depth ( I drill on the lathe prior to shaping the handle) and glue. BTW, I went to 48/50mm for the loft.