I use nothing but hair rigs for carp and I use mono.
I want to try braid though, just haven't had the money haha.
But it's awesome to see some avid carp anglers! Ya know we belong to a group in the very low thousands in the US that actually carp fish!
Cream - That looks like a blast! Bet it's fun to hook into a "small motor" that pulls you around the lake/river.
Alex - If you get a chance to buy some braid, buy Sufix Performance Braid 50lb test green. The Sufix 832 should work as well. The braid will have a waxing coating on it so run your fingernail along it a few times to make it more supple.
I thought I had some powerpro laying around to compare but I can't seem to find it. From what I remember powerpro has even more "wax" on the line and may not be as supple, but I could be wrong. If you have powerpro laying around by all means try using it.