Great question! One I should have an answer to.. I guess I subconsciously like creating more work for myself.
I don't know if it was a "decision" as much as it was something that happened. 3DL rendered much faster and I wanted something for reference while I worked, so it made sense to my dumb brain at the time. Iray was tricky to find the balance between quality and time consumption for me. Like I said, I'm extremely new to all of this, so I haven't worked out a streamlined process yet. But I'm learning every day. Mostly because of my screw-ups, but hey... Still learning. 👍