Once I learned how to tune a traditional bow properly, arrow flight was not an issue.
When I got rid of an elevated arrow, and it was closer to my hand, my shooting improved,.. alot.
As mentioned, some of the older bows with a flat shelf are much better off with a simple elevated
rest. If anything, I think it may actually be a handicap.
Even the new bows with the metal handles, and adjustments from top to bottom, still require the same skills to master.
If I miss a target, it has NOTHING to do with the fact that I don`t have an elevated rest.