No, scirpture was not a typo, but a display of an odd sense of humor.
Anyway, I just thought I'd give a little update on a possible subject for my Bachelor Scripture. Ah while ago I already mentioned in passing the odd correspondence between the verbal roots *gʰrebʰ- 'to grab' and *kerp- 'to pick'. I think these two roots might be a result of lexicalisation of one root that split into two gradation groups. The fact that there also is a schwebeablaut (that is a full-grade vowel that is not always in the same position within the root) seems to indicate a certain correlation between consonant gradation and accent shifts.
Outside of the verbal system we find another word that curiously seems to display such a gradation and that is *ḱerd- 'heart', while in Sanskrit we find hṛd- and in Avestan we find zərəd- which both seem to go back to *ǵʰrd-, and then there's the Sanskrit śrad- (notice the schwebe ablaut!) which in combination with dhā- 'to give' give a lovely indo-european experession also found in Latin Credere 'to believe'. This form seems to go back to *ḱred-.
I'm not sure if I can collect enough material to make a sound point yet, but I'm currently surveying the verbal roots of the Lexikon der indogermanischen Verben with the computer, and if all goes well all roots that might be elligible should roll right out.
If this works though, Kortlandt will have a much stronger point with his vowel gradation. So far he seems to have only the correspondence between Accent and consonant grades, but no proof that there was actual paradigmatic shifting within one root.
Seems like a fun enough subject doesn't it?