Prologo Tgale / U-cage - behind the saddle

I’ve been looking for a while for a solution to put a bottle and a repair kit (tube, co2…) behind the saddle.
I tried the xlab super wing, but I’ve never been really happy with it. It moves a bit and the bag is kind of compressed between 2 screws, I’m not a big fan.

I’ve been wondering about the Prologo Tgale saddle with integrated bottle mount (u-cage), like this one:
http://www.slowtwitch.com/articles/images/9/125959-largest_MolinariBike10.jpg

  • Has anyone tried it already ? Does this saddle compare to ISM saddles like the prologue or attack (which I really like).
  • Do you think it’s possible to put a simple saddle bag (like a scicon elan for example?) below the saddle, in front of the u-cage?
  • Any feedback on this u-cage thing? Is it sturdy?

Any feedback would be greatly appreciated! (before I spend all my money and get disappointed ;))

I have one of these on the bench that I had planned on trying. I have not picked up the cage holder for it. It is shaped much more like a Bonty Hilo saddle than any of the ISM models. This would benefit those that are most comfortable on narrow saddles and have trouble riding the typical noseless saddles.