Phil123

I have the Rudy Project Rydon set. My Rx is -5.50 and -7.25, and I need progressive bi-focals to see what I am doing up close. In other words I have very weak eyesight! I can barely see the wall chart! Also, I needed the high-index type of Rx lens material. I went to an optometrist who knows the Rudy Project product. He spent 3 hours with me, explaining the need for focus on far targets and close targets, progressive bi-focals, high-index material, curvature, all combined into one lens. The progressive bi-focals were non-negotiable, without them I can't focus on things up close like reading a WSB, loading mags, or anything fiddly with my equipment. The optometrist also explained the curvature issue with the Rx lens. In the end, I received an excellent product and can wear them all day, all weekend, without any issues. Also, the Rydon set includes different colored safety lenses which I switch in and out depending on the daylight. At least chat with them over the phone. If you don't need bi-focals that'll make things easier.

Having now been aware of the number of coils (14) in the spring, I don't think it makes too much difference. However, what has made a difference in addressing the bullet 'nose dive' into the feed ramp issue, is the use of a new Raised-shelf mag release catch. This noticeably holds the mag fractionally higher, and of course points the bullet higher toward the feed ramp and thus into the chamber. Works very well.

I have a 1911 STI Trojan 5" 40 S&W. I use Tripp Corey System 10R-10MM-RG magazines, with the Hybrid Follower. I've always dismantled, cleaned, and assembled my mags one at a time. Then, I just so happened to take them all apart and lay the parts side by side. This is when I noticed something when all was laid out in front of me: I'd previously ordered 4 new Tripp Corey System Mags, with the hybrid follower, and counted 14 coils in the springs. But, the other Tripp mags I bought used (the same 10R-10MM-RG tubes), with the steel flex follower, and they have 13 coils in the springs (see the attached pic). So, I went to the Tripp web site and noticed the springs listed for the 10R-10MM-RG mags are for 15 coils. I'm guessing Tripp uses the 14 coils for the Hybrid follower which is why I received the 4 new Corey System mags like that. I shoot IPSC so I can step up to the line with 9 rounds in one mag (no problems in getting 9 rounds in the mag), then on the order of 'load and make ready' I strip the top round into the chamber and hence now have 8 rounds in all mags on my belt before the buzzer starts the 'course of fire.' Otherwise I never have more than 8 rounds in a mag, even when practicing, so the springs are never under maximum compression with 10 rounds. Either way, does the number of coils in a mag spring effect feeding? Could the number of coils contribute to bullet 'nose-dive'? Is there an optimum number of coils for efficient feeding? Too many coils? Too few coils? What are your experiences with the number of coils in 40 SW Tripp mags and other mags?