Doctor Who continuity error?

Just something that occurred to me this morning. At the end of David Tennant's season, Davros claims that he created an army of "New Daleks, true Daleks". That army was of the bronze Daleks that we've seen though out the new seasons.

However when the last of the Daleks activate the progenitor in Matt Smith's, they say it contains pure Dalek DNA and the Daleks that arise are dramitcally different. Surely when Davros made his army, he'd have made them as he did at the beginning of the time war?
 
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