I have both strains from Crop King. The WW and PK are both awsome strains. I don't soak first. I just place in R paid Rooters and it only takes 2-3 days and they are out. Here are pics of both I have now. They are at day 17 of flower.
I have had nothing but success with WW from the king. I don't even soak them. I just place them in Rapid Rooters and about 3 days later the pop out. Never a problem. This is a WW that is 16 days into flowering.