Hi, hz justification brings better results, sometimes (most paragraphs don't change), but the entire typesetting is generally slow down with hz almost by factor 2. Thus I'd like to have a a kind of "partial hz" that I can use on selected paragraphs only. I hoped it should work like this: \startfonthandling [stpure] \defineprotrudefactor endash 0 0.25 \defineprotrudefactor hyphen 0 0.5 \defineprotrudefactor / 0 0.5 \defineprotrudefactor , 0 0.5 \defineprotrudefactor . 0 0.5 \defineprotrudefactor : 0 0.5 \defineprotrudefactor ; 0 0.5 \defineprotrudefactor - 0 0.5 \defineprotrudefactor quotedblleft 0 0.25 \stopfonthandling \definefonthandling [stpure] [stpure] [type=hanging] definefonthandling [sthighquality] [hz,stpure] \setupfonthandling [hz] [min=20,max=20,step=5] \setupfontsynonym [Serif] [handling=sthighquality] \setupfontsynonym [SerifBold] [handling=sthighquality] \setupfontsynonym [SerifSlanted] [handling=sthighquality] \setupfontsynonym [SerifItalic] [handling=sthighquality] \setupfontsynonym [SerifBoldSlanted] [handling=sthighquality] \setupfontsynonym [SerifBoldItalic] [handling=sthighquality] \usetypescript[postscript][\defaultencoding] \setupbodyfont[postscript,10pt] \setupalign[block,hanging] ... and chosen paragraphs I'd wrap with a ... \setupalign[block,hanging,hz] But this doesn't make any improvement in speed. The only relevant change seems to be definefonthandling [sthighquality] [hz,stpure] When this is changed to definefonthandling [sthighquality] [stpure] then typesetting speeds up, of course. But this gives me no choice between main text without and selected paragraphs with hz... Any ideas? Steffen