Hydration System for P4

Looking for some advice on a rear mounted hydration system for my P4. Have come to the conclusion like many other that the frame bottle is just not a workable solution for hydration. I can never put it back in the frame mount without having to stop pedaling.

I race mainly long course and have a Zip Cage wired between my bars for water but require something for my race fluid. I have heard good things about the Beaker Hydrotail 5C. All3Sports has a deal currently going with free cages (See link). Anyone have experience with the Beaker and the profile cages? Want to avoid at all costs getting a bottle launcher.

Thanks - JG

http://www.all3sports.com/product_info.php?pName=hydrotail-h5c&jsenabled=1&osCsid=7caf81b8c8170d7394768416c1fdce6b

I have used that set up and have never had a bottle launch.

The hydrotail is one of the best solutions out there (along with the xlab sonic wing). I use it, but only in training. For IM races I go with only one bottle, as there is plenty of aid stations to swap bottles.

The secret to avoid launching a bottle is to angle the cages slightly to the back. After a lot of trial and error I am currently using the specialized rib cage and have never launched a bottle with it:
http://img.artscyclery.com/big/SWCRCP-BK-1.jpg