Can you use leaf cuttings instead of bud...?

I dont know myself but to bump your thread anyway ill say :
I dont think the leaves have THC in, only the bud has THC in.
So you wont get high from leaves.
I dont know myself, this is just an educated guess.

You can, you just need a shit load more.

leaves, stems, etc have THC just greatly decreased amounts like 1-2% percent rather than the buds that might have anywhere from 10-25% potency.

Try to get all the THC trichomes off the trimmings and use that.

Dan