Hmmm..I started to stay out of this so as not to confuse, but I shoot my trad the same as compound.
Draw, anchor, hold and release when...... well I don't know when I release. When it feels right? I can't explain what makes me decide to release. Maybe when my bow arm is still? Not sure.
I do hold for at least three sec or so, sometimes more. The last deer I killed I drew and followed him for five or six steps I guess before I let go. I used to snap shoot, but found this method much more accurate for me.