I've been looking at building a new rear wheel (based on a 36h Centaur hub and DeepV rim), and have been looking at lacing methods that claim to address the spoke tension imbalance caused by the large dish of the Campy 10sp hubs.
I've been reading Robert Torre's wheel lacing pages, specifically the one where he talks about 2X/3X mixed lacing, and I'm confused about something. On other parts of his website, he discusses more radical mixed lacings such as half radial and half-crow's-foot. With those lacings, the premise seems to be that the closer to radial the spoking pattern is, the more lateral strength the wheel will have. With this in mind, he talks about lacing the drive side with the radial or half-crow's-foot pattern, and the non-drive side with a conventional crossing pattern such as 2x. The idea is that, for a given spoke tension, the radial spokes will have a stronger lateral "pull" to the drive side, allowing you to dial in a higher tension on the non-drive side to keep the rim centered, which should in turn help keep the spokes from flexing and loosening on the n.d.s.
I'm a bit nervous about using any radial spokes at all on a low-flange hub, especially at my weight (255#), so as a compromise, I was thinking about trying a 2x/3x mixed pattern. With the previous discussion in mind, it seems to me that a 2x pattern will have slightly higher lateral strength since the spokes come off the hub at a more radial angle, and thus would be appropriate for the drive side to balance a 3x lacing on the non-drive side. However, on this page he pretty clearly states that the wheel should be laced 2x non-drive/3x drive, which seems backwards to me. The diagram seems to bear this out, as you can see that the position of a theoretical 3x-laced spoke on the n.d.s. seems to leave the hub at a more perpendicular angle to the axle, and therefore will have less lateral pull on the rim for a given spoke tension (again, this should be a good thing on the n.d.s., since it means you need more tension to balance the d.s.). So is my analysis incorrect, or are there other factors in play that cause this "backwards" lacing to work out better than the one I proposed?
My current rear wheel is a Mavic CXP33 laced 3x both sides with DT 14/15 spokes, and despite my best efforts at keeping consistent tension (using a tensiometer), I still have spokes loosening up on me on the left side every 1000mi or so. Right now I have the drive side at some insanely high tension like 170kgf, and the wheel dish is still a couple of mm off to the left (IIRC, the n.d.s spokes are in the neighborhood of 80ish kgf at the moment). Anything lower than that and the left side spokes have to be uncomfortably loose. One thing I may try is just replacing the CXP33 with a DeepV, keeping the same hub, and redoing the 3x lacing. I'm beginning to suspect that the CXP33 may be a bit warped and therefore requires some uneven tension to true it up. That also allows me to reuse my nice Record rear hub.