I should think that if given the choice, I would take a pedal harp over a chromatic cross strung. Playing in any key is possible on both instruments, and its silly to have feet and not use them. Plus, pedal harps have access to many different glissandos, while I am not sure how cross strung technique would would facilitate the same. The technique for cross strung just sounds so clumsy to me. There are good reasons why the pedal harp is the standard now, instead of the cross strung. But I have never played a cross, so I might be wrong.