First, you have to get the shoes adjusted before you will have a full pedal. I run them up until I cannot turn the drum with a bar between the lug studs, then back off a tad until the drum will turn with a slight drag.
As to bleeding, I trust the old fashion way. Have someone to pump and hold the pedal while I bleed.
After these 2 procedures you should have a good pedal. Unless the shoes or drums are worn out.