So I think I've confirmed that something is going wrong (possibly incorrect spoke lengths?).
Spoke lengths won't alter spoke tension. Build it up so the DS spokes are tight, and the NDS are tight enough to centre the rim. After that, there's nothing else you can do without changing parts. And there's no reason why those parts can't be built into a functioning wheel.
Spoke lengths won't alter spoke tension. Build it up so the DS spokes are tight, and the NDS are tight enough to centre the rim. After that, there's nothing else you can do without changing parts. And there's no reason why those parts can't be built into a functioning wheel.