Which knot for the handle ??

Well I decided to try the method of 24 hours in water in the fridge, 10 minutes of towel stropping and back to the fridge for 24 hours etc for 3 cycles........ I forgot the brush was in there and my wife just asked if I still needed this brush in the fridge which has been there for 3 days (72 hours) I panicked and took it out and did a 2-3 minute towel strop to dry it out. Not a SINGLE hair lost and visibly see some hairs split 1/4 to 1/2 inch. It's already soft. I think I'll forego any further treatment and just use it now. I let her feel the difference between this one and the stiff feeling Stirling I've been using on and off for months. She ran the Stirling over her face after the New Oumo and after scrunching her nose up said, "You better soak this one in the fridge now too"