i got a black supalite dual trim flocked with my CLX and i hated it at first then after a few days i realised what a superb brush it is!it just took a few days to get used to it!its great for leaded and georgian windows as well as there is much less "drag" than mono brushes and they are VERY LIGHT!!this is my main brush for maintenance cleans.
i have a vikan rectangle mono on my 25ft hydra and its a great brush but its like a brick!!its ok for a few commercial jobs and 2nd floor windows esp if its a bit windy but its not used regularly day in/day out!!
i use a stiff vikan sill brush for dirty conny roofs/fascias and i have a brodex 12in which just gets used for washing the van!

i also have 2 supalite monos.one splayed terribly after 2 weeks so i got sent a replacement.the replacement is just a spare at the moment.
regards
dazmond