Well, I was gonna mention this before, so it's not a response to dZ or anyone else in particular. My "stand back and take a look at it" perspective is this: With the fuse mod and the firing pin mod, I'm getting some incredibly good results. Rob's BC contacts look promising to perform just as well. The centerpost stuff I've been playing with has been primarily a means of seeing what kinds of gains can be achieved in eliminating the 510 connection. They come with some pretty big trade-offs. I can't think of a way to do it without having a centrally located +post in a small chamber atty. No more switching atties on a whim. No more RM2. . . . . . For what? The first version with a brass center post got me no gain in voltage to the coil. It was equal. The second version got me added v-drop. I'm not saying it can't be done. I'm saying I was only interested to the extent that there were sufficient tangible gains to make it worth either the trade offs above-mentioned or some serious investment in factory fabricated parts. Although I know there are folks who would gladly hybridize their REO for other reasons; I don't see the point if I can't see the point (for me). Even if I tinkered on indefinitely, what would I gain? My Rigs are all hitting like a Mack truck loaded with steer manure and barreling down the Snoqualmie Pass. I don't even know what kind of gain would have made me think it worthwhile. There's just not that much room left in there. 0.13V on a 1Ω coil, and 0.3V on a 0.4Ω coil, c'mon, that's sweet! And so is the RM2, and switching atties. I guess, all I'm saying is, having done quite a bit of experimenting w/ and w/out the 510 connection (and having seen absolutely zero gain from having 2 different solid centerposts in there . .. and giving the current an alternative path on the neg.) . . . . . . . . . . . I'm good with it. I like it. I see theorizing about contact points . . .. but my math is field-math, and out here it works just fine.