I've got a Limited Extreme .40, I'm working up a 170pf load. I'm just wondering what springs you guys are running in your Limited guns. I have a 10, 11 and a 12lb now, has anyone used Henning's 10.75lb spring? I know about sight recovery time and ejection pattern. There's a lot of knowledge on this forum so just curious how some people are setting up their guns. Thanks in advance for any info. P.S. First time Tanfo owner and setting up a .40.