I am not claiming in any way to be a subject matter expert on this. However, my understanding and practice is that if you do distill to a lower proof, you’ll do a few things. Not only will you provide more flavor from the base spirit, but by doing so you will allow the aging to mature a bit quicker being that there is more base flavors for the wood to interact with. We distill at a lower proof because it provides for a more fuller flavor quicker. Also, the level of char plays a part in the process, or if you’re using new or used barrels. There’s a few folks out there that know a whole lot more about this, maybe they’ll post.