Thanks v. much GXMnow. Once again, your description is extremely helpful, esp. the details about separate application of dielectric grease on freshly-sanded copper and Noalox on aluminum-copper connections-also the clamping and torque specs. Your concern about the welded tabs is close to mine. Thinking about it - as I'm typing - makes me wonder if I might test by drilling through the weld on one of the blocks of cells that I have left over after my module surgeries. If I end up messing up that factory weld, I'll use your design for the modules. On the other hand, if I can get a clean hole on this test, I might play around with clamping the copper plate to the tabs only using screws, nuts, and washers. My thinking is that if I could go this route, I might use silicon-bronze fasteners, reducing (still not eliminating) the number of newly-introduced aluminum-copper contacts. I'm aiming to have 14 tabs on ea. module (to make a 14s9p bank), so the chances I could miss a potential loosening connection are higher. I'll plan to update here if I find anything noteworthy after I have the chance to do some test drilling. Does this silicon-bronze fastener option sound reasonable, or have I got to the point where I am I over-thinking this detail?I had a few reasons for my clamp design. My biggest concern was I didn't want to disturb the factory weld. I expect that it is fully able to conduct the power from the 3 cells to that buss bar as is. But if I drilled through those welds, I was not sure how much of the connection I would mess up. . . .