OK, but does this sound like the eighth circle of hell to anybody else? I am so sorry that your bits are so bothersome with the Brookses... it makes me never want to try one, even though they look so cool.
On my road bike, I've had a Terry Butterfly saddle for the past 2 years, and except for 80+ mile rides, it's great! At more than 80, the foam seems to squish down and be really uncomfortable on the sit bones, but I only do a half-dozen or so centuries a year, so I've dealt with "almost there!" standing up on the pedals, etc.
I had a WSD gelly cutout thing on my old mountain bike, and at six years old, it's getting really mushy but is still comfy.
In the interest of trying to get "the perfect" saddle, I did try a couple of Koobis that I couldn't figure out how to make comfortable at all.
It seems like you've just had really bad luck thus far! I hope your bits get better soon, and try some chamois cream and just ONE pair of shorts, maybe.

