Here you asked the most important question. I myself was racking my brains over which processes really work and which are just marketing. And just on the Tech Met website I found technical documents with figures and measurements for different alloys. Honestly, for me it was a revelation, because I got access to specific data: how fatigue changes, how roughness improves, etc. I think information about additive manufacturing post processing will help you avoid mistakes and save time, because you will immediately understand which processes really give results.