It really depends on the size of the plant.
All your sucker leaves would be best for hash.
Fan leaves are okay, since they have a bit of thc on the stem
and around the base of the leaf..
For a full grown plant you should yeild about 1/4-1/2 dry lb of leaf.
If your collecting as you cut them then a little more.
If you check the thread on Cold Water Extraction: Ghetto Style
on the second page there are 3 pictures, taken 15 minutes ago.
I yeilded that from 1/4 lb of dry leaf and bud shake using that method.
Its drying out fully right now since its really fresh..
but that should give you somewhat of an idea