Well guys, I was sitting around today thinking (a bad thing), when I got the idea to try and swap the springs between my Halo2 and Dalton M-6. After the transplant, I had a much slower M-6 and a slightly faster Halo! Anyone know where to aquire some spring stock the same size as used in the M-6?? There was, by the way, still about an eight of an inch of extra space left for more spring in the Halo after compression. C'mon guys, I know I'm not the only tinkerer!