Dazmond definately made the right choice with the new stiff brushes , i had the medium mixed to start with , i then fired up the L5 and killed the brushes in less than a week , i tried the hot water reset method but it didnt bring them back as they were.
If you are going hot then stiff bristles are the way to go .....
Well done Dazmond , you just saved yourself at least £100 in the long run
Rich