I'm using the last of the 4-pack right now and it's doing a good job. However, I made a run to my LQS today for size 16 Superior needles. (Titanium. The ladies there said they are excellent needles and should last a good long time.)
I normally do use 14's, but I'm working with flannel at the moment. The Organ 14's were balking when I put the pedal to the metal.