thanks for that dave, I have some round glass mosiacs to cut to fit a square apeture, they have the coloured backing to a clear glass and wondered how well it cuts this type of glass.
I can get them water jet cut for less than the cost of a dna blade but want to try a new blade as not that impressed with the ck850 (have had 3 of differing sizes on the dewalt)
Get the montolit dna blade as dave says , i took his advice last year after needing a new blade for my Rodia bridge and its well worth the extra , it cuts much faster and leaves a superb finish ..