Hello As I now have a few different knots, Silvertip, boar, Tuxedo, Cashmere I was wondering which are best suited for soap and creams. I used my boar the other day with a hard soap, seemed to lather ok, but when I came to dona 2nd pass the lather had gone. Used the Silvertip yesterday with a different hand soap, again hardly any lather left for 2nd pass. This is obviously user error, any tips? Is it the abvious i.e. load the brush for longer? I don't seem to have any issues with the Tuxedo or Cashmere. Looking forward to your expert advice or any video links.