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I laced up a wheel like that a month ago just because I had to replace a hub (bought a 32, laced it as a 24) and like the higher spoke tension on the non drive side with the lower spoke count. The final tension as easier to do.
With that said I still wouldn't seek out a hub/rim with that configuration to build and save the weight of 8 spokes on a rear wheel. I would go standard 2 cross/half radial 24 or 28.
2:1 is no great thing, BTW.
The raised NDS spoke tensions are worth it.
This came up the other day and the main issue I can think of is what happens when you break a NDS spoke. The spokes want to catch on the frame which has the potential to cause significant knock on damage. I have experienced this issue but in my case it wasn't catastrophic and I'm not convinced it was that much worse than breaking a spoke on another low spoke count pattern. You certainly have to be really careful about damaging the rim and frame trying to ride home once a spoke goes, but again this isn't restricted to 2:1.
I thought so too until I built a few that way. I won't go into all the structural aspects, but the spokes support the rim through pre-tension. If you only have 7 spokes on one side there is a long span between support points. Besides the rim getting a bit of a wave in it from this, if you break a spoke, the rim will warp badly (hit the chainstay and maybe get jammed).
2:1 isn't bad if the rim is stiff and the hub offsets are designed for it. But I wouldn't favor it if you are using a light rim.
If you want really light (and 2:1 lacing) I ran across these the other day. $1340, 940g. No idea if they are any good: https://carbonbikewheels.com.au/...bon-tubular-wheelset