Toasty, of course I know it is your money and goes without saying that you can and will do anything you want with it. But this wasn't my point, neither I was trying to criticize you wanting to upgrade your mouthpice. Just trying to be helpful, for what it is worth..... .
Your mouthpiece is not boring, just common, which is exactly what I said, therefore it is not difficult to go to a shop (you must have some around where you live..) and ask to try several of the same type with different openings until you find the one which suits your needs.
You can have it refaced of course but you will have to tell the refacer how open you want it since you can't expect him or her to know how open it has to go just because you provide a reed to go with it! It is just not enough information, neither you can rely on him or her playing your piece with your reed and decide which opening it has to go to because you need to say, I want is opened to this size (and he will work out how much to shave off the piece to reach the size that you will provide him).......
So, unless you are there at the refacers workshop while he is doing your piece, you will just take a guess indicating the new size it has to be.....which is not unlike ordering a off ther shelf piece without trying it first. So trying your new size first at the a shop seems to me the best possibility you have to get what you want. Once you have refaced your piece, if this is not the opening you want , it will be more difficult to sell on and more time consuming than spending a couple of hours in a shop.
This is just my two pennies worth, not trying to be judgemetal or snobbish about anything