Might be a better question on this old avocado thread if noone responds here Avocado scions- where to find?
Im no expert since we dont grow avacodo but i would bud graft them.
Not that you have to
This will explain why some dont use tbuds
I would graft them now Late season grafting experiments only. Using green wood cuttings, Plastilina, tbuds, chips, and other methods