P3 and Fizik Arione

I currently have a P3 with a San Marco Tri aspide gel and an X-Lab twin bottle cage mounted to the seat rails. However, after recently purchasing a Fizik Arione saddle, I was told by my LBS that the X-Lab would not mount onto the Arione rails. I notice on the Fizik Arione advert in the tri mags, Tim Deboom riding a Trek TT with the Arione and some kind of bottle holder mounted on the rails. Does anybody know what it is or the best way to fit twin bottles behind the seats on the Arione?

I ride a P3 with an Arione Tri. I mounted a Flatwing on the rails the same way as with my previous saddle. It works fine.

I second the Xlab faltwing. I just put one behind my Arione and it works great. Not sure how the Xlab saddlewing would fit.

Nsxdan

you just need longer screws to mount the saddlewing on the Arione.

you just need longer screws to mount the saddlewing on the Arione.
So its a matter of building aerobic endurance?

although the minoura is a superior product. IMO.