Depends, there are plenty of tutorials that showcase TexTools. The build in UV tools these days in 3dsMax are not as terrible anymore as they used to be. Just get yourself familiar with all the options out there, TexTools is free so have a look at the website at the tools and see what could be useful to you. I have been…
I use 3dsMax and Blender so my feedback is based on those 2 tools and TexTools which I created. * I would unwrap the model all as a merged mesh instead of separated pieces (just faster). I used to do this even with Headus UV layout with very complex scenes, its just a lot faster to do it all together and later seperate…