In article ,
"Kevin Brady" writes:
However there are the odd givaway scratches and pits in the surface which
are more prominent now it has 'gone off' and I am happy to spend a bit more
time getting that super smooth finish.

Make sure these can be felt and not just seen. Often there
are visible marks all over a newly plastered wall, but you
can't actually feel them as the surface is flat, which is
all that matters.

--
Andrew Gabriel