Alternative Tuttle Connector for Slingshot foil/mast

Hi, I have a tuttlebox in my board, mounted a little deeper at the front to compensate rocker.
Like Alex Aguera is explaining in this vid at 6:55

The original Slingshot tuttleconnector has a flange around the shaft, so the shaft doesn't fully fit in the box.
I could either grind down the flange of the SS connector now or use an alternative tuttle connector without a flange.

Do you guys know if there are deep tuttle connectors of other brands without flange that fit the Slingshot mast profile and threads ?
Something like the Gong, but for the SS mast with only 2 screws?
Alex



www.gong-galaxy.com/produit/gong-foil-allvator-deep-tuttle-connection/

If it is just a little deeper, you could put a shim at the bottom of the tuttle box (or the top of the foil head) to keep the flange just flush with the hull?
The sides of the tuttle box are parallel, not conical, so it should work.