Two of the three nzb import scripts have been updated to allow import gzipped files directly, without gunzipping first. All three have had there speed increased in the process. Not a whole, but enough to be noticeable. All three scripts were opening the nzb file twice, changed, now only opens once.
I hope this addition makes it easier for some of you to convert those old unused nzbs.

PS.
I nzb import in www/admin has not been updated to import gzipped files.