\usetypescript[postscript]
\definetypeface[postscript][rm][serif][times][default]

\setupbodyfont[postscript,20pt]

%\definegridsnapping[verytolerant] [maxdepth:1.3,maxheight:1.3,strut]
%\setuplayout[grid=verytolerant]
\setuplayout[grid=tolerant]

\definedelimitedtext
  [quotetest]
  [leftmargin=standard,
   before={\startgridcorrection\blank[medium]\switchtobodyfont[8pt]\setupinterlinespace[line=8pt]\setupwhitespace[none]},
   after={\blank[medium]\stopgridcorrection},
   grid=tolerant,
   indenting=no]


\starttext
\showframe
\showstruts
\showgrid

\input tufte \par

\startquotetest

\input tufte \par

\stopquotetest

\stoptext