yes, it uses the "southern hands / northen feet" idiom. But each style has it's own foot and hand work that has been worked in.
Most schools that teach using this idiom have a northern style and a southern style being taught. Often times by the same teacher.
Bak Sil Lum (Bei Shaolin) for instance is North Shaolin (literally) style. But it has a strong connection to the Southern part of China in regards to it's origins and spread.