http://www.planet-x-bikes.co.uk/i/q/WPS ... r_wheelset
I have 7900 c24's and love them and want some deeper wheels.

Never ridden these particualr wheels my self, but i do like the shallower rs80 c24 version. And IMO no they arent worth the money. You are paying an extra £200 or so for a heavier although a marginally more aero wheel. I'd recommend you get the shallower version, much better value for money.

Have some and am very satisfied, not the most aero wheel both the hubs do roll beautifully.
However, today I found that I had dinged both wheels' sidewalls due to pothole impact.
Nothing severe as i was able to use some woodblocks and vicegrips to straighten the walls again. I also thought I had broken the carbon surface as there was what appeared to be discolouration caused by the elastic limit being reached. A big relief as it turned out it was some residue left from possibly another tire rubbing against it.

I wouldn't buy them at full retail though, then I'd rather build something up.

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2011 Cannondale Flash F1
2010 Cannondale Caad9
2000 Cannondale Caad 4 aero
1999 Cannondale Caad1
???? Concorde SS