I said I was going to give an elevated rest a shot and this is what I found out.
DID NOT MAKE ANY DIFFERENCE. With that said, I did not notice any improvements/benifits with arrow flight versus shooting off the shelf. If you have a well tuned arrow and bow combination with either method and it works, then I believe it just comes down to personal preference to fuel the confidence.
Now, it may have made a difference if I was going to shoot vanes, but don't plan on that happening.
Fun experimenting anyway.