I was thinking of getting Pekins for meat this spring. I was looking on Metzer's website and they have Pekins and Jumbo Pekins. Has anyone raised these Jumbo Pekins and raised them along side non-Jumbo Pekins? Are they really Jumbo? The drakes can apparently get up to 13 lbs, but is that in 8 weeks? I don't want any of these ducks around for longer than 8 weeks because then they might end up being here for 8 years!