Except for a cork screw or some gadget designed to be used half open, I would never use a knife blade half open. I would go against everything I've learned about safety and proper cutting techniques.
I don't hate half stops, I just don't understand why a knife blade should stop half way open. It don't understand from a safety stand point and it just seems to make the knife harder to open.
I didn't do my home work & bought a Queen #51 Dogleg Jack with half stops, mumbled to myself about the half stops for a year. Then took out the finishing stones and put a small radius on the tang corners. It still has the half stops, still has a good snap but opens much smother now & doesn't have that half finished feel.
If I radius the corners of the tang, I can live with and don't mind half stops. As long as I like the knife in every other way.
And now how is it like the spring position in closed and opened?