I took my gun apart last night to clean it and I noticed the springs aren't straight any more (aren't straight as in crooked and bent). I have about 600 down the tube. Does KT send you springs free or do you have to pay? Are there better springs out there to buy, like Wolfe (Wolf?)? I would like to replace mine and my GFs. If there is a cost, what does KT want for them? Thanks.