Just got my new WR Knucklehead in the mail today. Really happy with the overall feel/ergonomics and it came crazy sharp out of the box; however, when I went to place it in the kydex sheath, there was a lot of give in the rear of the sheath and there wasn't nearly the same amount of retention as I have had in my Candiru, BK24, or Brous SS factory sheaths. Is this normal? Should I be worried about retention during high activity? etc? Thanks in advance. I noticed there hasn't been a ton of activity on this part of the forum, but figured this was the best place to find another knucklehead (user) .