everyone's ass is different.
Naturally, not all asses are compatible with all saddles.
It would be best if you just try them out.
ah but the thing with brooks though is they gradually comform to one's ass!
at first my brooks wasn't exactly the most comfy thing ive sat on. but over many months of riding ive noticed get gradually more and more comfy. that is why people go for leather saddles...
reminds me of soccer cleats....some argue the best soccer cleats are made from kangaroo leather, and that you should get a half size down....after perspiring in the boots and running around the k-leather will gradually conform to the shape of your foot, creating a perfect, almost custom fit.
i cant compare my brooks to a turbo though since i have never sat on one.
also, if people are looking to buy a brooks, the cheapest i have seen for a B-17 narrow was from
www.wiggle.co.uk/.... they are based in the UK, but surprisingly shipping to California was FREE! and pretty quick for international shipping....