Do you think any of this is a surprise to me?

At one point, for a very brief time Carrara, Studio, and DAZ content worked quite well together. I thought "hot damn it's all coming together", then it didn't. In fact Carrara, Studio, and DAZ content have drifted so far apart that they don't work together at all now. I gave up when it was so frustratingly difficult to get anything done that my ears would get to ringing. Just too old to let myself get that worked up anymore.