The TRIP test nicely shows the sin of TeX-GPC: It does not trim trailing spaces of input lines. This is shown in trip.log.diff, the "**" line of TeX-GPC's log file contains a space, whereas the original log file doesn't. Furthermore the statistics the high water marks of the buffer stack differ by one (113b not 114b) which is the trailing space. TeX-GPC needs more strings and string characters than TeX because it does not conserve string space. These are all differences shown by the TRIP test, so TeX-GPC is still pretty close to TeX. September 2008 Wolfgang Helbig