I use HKL-2000 to process my XRD data. One of them has a resolution of 2.3 Å, but I also have other XRD datasets with resolutions worse than 2.5 Å. Can I use these different datasets to improve the quality of my highest-resolution result? How should I merge this data, and which programs should I use to achieve this goal? I typically use Phaser for molecular replacement, Refmac5 and Phenix.refine for refinement, and Coot to address Ramachandran outliers.