I have 50 or so star line brass that don’t have enough neck tension. This brass has been full length resized, trimmed, wet tumbled, then tumbled in cob with nu finish. They will fit in a case Gauge. My first thought was to resize again and see if this fixes it. I used a set of RCBS originally but have since bought the Lee ultimate 4 die set. Would it be better to use the neck size die, or just full length size them again? Starline is really good brass and I want to use it. What say you, ODT Reloading brain trust?