I am replacing my bunks on my trailer , I am using #1 prime pt 2x4's and carpet from bass cat boats and.1/2 monel staples.
I was using a manual arrow t50 gun and the staples were not going all the way home.
I called arrow and talked to rich in repair dept.and he said try the air stapler ( mod. T50).
I went to lowes and picked one up ( 32.00) works like a charm, buries the 1/2 monel staple.
Paul