Yeah, I don't think I would like it either. I ride western and use a leather ladigo also, I could tighten it while riding if I have to. One of my favorite things about English saddles is they are so easy to adjust while you are riding.
I would be more inclined to try this with an English cinch Cashel Western Saddle to English Cinch Converter
So in lies the madness, the pursuit of the impossible in the face of the complete assurance that you will fail, and yet still you chase.