I use a lot of craft foam to bring the color of the blank/wraps into the grip. i find that if you glue it up with epoxy and give it a good squeeze it absorbs some of the epoxy and stiffens up quite a bit. After it has dried it turns down nicely.

Order on this one is; Natural Burl Cork, tan craft foam, maple burl, mixed burnt and burl cork, spotted cork and finally rubberized cork.
I sand all my grips down to 12000 using micro mesh, takes a little longer but really evens everything out. I use a lot of wood trim rings in my grips so finish all my grips with 6 to 8 coats of Tru-oil (gun stock finish). With the availability of really good cork becoming tougher and tougher I find myself using more and more non-traditional materials in my grips.
Colin