I was at a show recently and picked up a late model coil spring Highwall action that has a hammer with a half cock fly.  When the lever is cycled all the way down and up, the hammer returns to the half cock position.  If you cycle the lever 3/4 down, the hammer goes to full cock.  This all seems normal according to Campbell's book.  The question I have is from the half cock position, if the trigger is pulled should the hammer fall ? If not, what adjustments may be needed.

Thanks  I will check out the hammer notch.