[z3phyr]

Could be but all across different regions across the subcontinent where the Vedas are orally recited, except for some technical tones and notes (which is the mechanical part of Vedic Sanskrit) there is little difference.

There are serious attempts made to write down the vedas. The thing is, historically, very few people learned all 4 vedas by heart; Instead different families recited very small part and passed the recitation as heirloom.

If you meet all those families and compile their recitation, it exactly matches to what we have from different earlier efforts of canonisation.