We use the MbCollapse script from Martin Breidt, and find it pretty useful for stopping complex rigs failing.
I’ve just tried Xmeshing 8000 objects, where 7980 of them had script controllers on for transform, locally it would cause Xmesh to overload and crash, Page File usage was up to 30gb or something. Strangely it Xmeshed on the network fine. But to get it working locally I had to run mbCollapse on it first.