I picked up this Hoage square hood off Amazon. I was concerned with the fit because the description said for the Q3 43 but I figured for the price, I'd try it and if it didn't fit I could return it.
The hood does fit and there's no issue with vignetting or with the macro setting. It threaded in just fine. So, if you're like me and prefer the square hood but also like the brassy bronze look, the Hoage may be ideal for you, too.