I did a lot of research when I got the first NZ rabbits. Talked with the meat rabbit guy, talked with the local rabbit club guys, sent out emails to a number of people on the meatrabbit list asking that same question...since the rabbit scientist guys have found that a cal x NZ gives the best meat/bone ratio, and the fastest growout rate I wanted to know if there were strains that were better, if the doe should be NZ, etc. The majority of those who answered my questions were on the "California buck, NZ doe" side.