In DBZ, we see that the Elder Kai fully awakens the dormant power of Gohan. In this state Gohan can match Buu in his unfused form. But after Buu absorbs Piccolo and Gotenks, why doesn't Gohan go Super?
Is there any reason that Gohan couldn't transform to Super Saiyan form after the awakening?
Edit 1: Removed the transformation in GT from consideration because DBZ and GT are seperate canons.
Edit 2: Dragon Ball Super has canon continuity to DBZ and I've heard talks of Ultimate Gohan in it. Has more information been provided on Gohan's transformation in DBS? Please Note: Yet to see DBS beyond the intial movies.