Ancona ducks crossing with others, your results?

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I was thinking of crossing Ancona ducks with Pekins. I like how they lay eggs, but I was wondering if their offspring my a. get to a butcher weight and a larger butcher weight quicker, like Pekins and b. if their offspring might get the weight of the Pekins but the laying capability of the Anconas?

Anyone try this before?

Anyone try any other crossings to get larger butcher ducks or larger butcher ducks with the same laying capabilities?