I have a model that is basically a rod with a tapered thread on one end, a larger, straight thread on the other, and in the middle is open space the diameter of the straight thread minimum. The model changes diameters/lengths with each configuration. When I try to add another configuration and change a linked dimension, it changes that dimension in other configurations. I've tried unlinking to no avail. There are equations in use but as far as I can tell all they do is assign sizes to named dimensions in each configuration. The formulas are greyed out so I can't select and delete them. Any ideas?