first of all it makes a massive difference in the gear u use, I had a 20m wall to dab & skim today it was a nightmare because I was given Lefarge dry wall adesive to use, it must cost 10p per bag, I am a dabber/plasterer/cover, and have been dabbing many years but this is the first time I have used this chite and i wont use it again, its alot worse than British Gypsum Dry wall, I have said many times on here Knauf drywall leaves everything else way behind its so easy to use no where near as claggy, gear cleans st off, its as though the rest are from 30 years in the past, infact all knauf gear makes life much easier on large areas the boards/dabbing/multi/and cove just make life easier