I did this just a couple of weeks ago and I'm very happy with the result. I loved my Brooks right out of the box... and then it gradually got more and more uncomfortable as it broke in. I have the special edition with the big copper rivets on the back, and as the leather broke into my butt shape, the rivets seemed to become more pronounced and I ended up with nowhere comfortable to sit on it. I noticed the skirt was flaring out a bit too, so I decided to lace them together to bring the shape back closer to how it was out of the box. I think I have achieved that, and I'm much happier with how it feels now.

I'd spring for a Cambium, but the price is absurd and I can't convince myself to do it when my B17 is still in such good condition (aside from the sag).