I have read all the posting about repacking the stuffing box, bought the tool, used 3/16" packing. Besides being a complete pain in the butt, I have one remaining question. I pulled out what looked like 3 rings of 1/4", and it took 5 rings of 3/16" to get the nut to where I'll have some adjustment in the future. Does that sound right? I've packed a lot of boxes, but I always replaced what I found, so this is a little weird.