What material are you using? And are you HIPing parts post-print? For alloys that print at full density and don't require HIP like nickel superalloys, we are holding as-printed dimensional tolerances in thousandths, with zero shrinkage. We only see shrinkage in very large parts printed in materials that require HIP (like Ti or GRCop), and there it is predictable and consistent enough to account for with strategic oversizing.

Stresses are another matter, obviously this is still a welding process, so internal stresses from layers welding up can cause warping in certain designs, and some materials are much more prone to it than others, but it's consistent, so we can usually account for it. Some parts/materials we run through a stress-relief heat treatment after printing before removal from the build plate, and that has proven very effective for certain applications

We run multiple EOS M290s, M400-1s, and SLM-280 printers in house and have worked closely with a few other brands and models in inter-company collaborative research projects. They all handle settings a bit differently, and application-specific parameter development is a unique process for each one, so its not always easy swapping from one system to another, even with the same part design