I recently purchased a vintage Ever-Ready 100 as my first shaving brush. I washed it thoroughly and have used it twice now and it's shedding. It's not a big deal because I paid about $6 for it. I am going to order and replace the knot in it and need some input as to the recommended size I should go with. I know there are a few of you on here that have restored these and any help you can give would be great. I am a helicopter mechanic and metalsmith by trade so I feel confident in my ability to do the job right.