Even normal blocks. The key is good enough without scud, just keep the fist coat soft enough that it goes into the holes of the blockwork.I take it scudding is'nt that popular in the UK.The first thing i do is scud a house inside and outside.
You forgot the cranberry sauce ffsThis time of year and near Christmas I normally just add 2 mince pies to every bucket of water per mix , and nats cock of double cream just to make things go smoothly. Make sure you use Mr Kiplings otherwise it doesn't work.