Finally got these lot together, looks spot on to the studio ox design, for the most part it is really solid for such a large build.
However there are minor design choices/issues, the waist tilt being one as by including that function the top half of the torso will always have a slight tilt to the front or back given it is a ratchet design.
This one is likely one of those bad luck scenario but the ratchet spring in the right elbow was too strong, as a result on a recent bending of the arm the inner plastic holding the ratchet in place bend and nearly snapped...
End up fixing by replacing with a weaker spring so it still holds & ratchet well and doesn't stress out the plastic too much.
Despite some hiccups overall this is still a great combiner, just need to be aware of the gotchas...
