Why would some cross an F5 with an F2?

Breeder's Lab
25

Im going to offer a different opinion - I’d consider those F1’s. Even though they’re sisters, if those S2 mothers are distinct enough to work separately, when you cross them to the same male you’re still creating two distinct new gene pools, with separate genetic potential in each pool. Crossing one from each pool to the other would be a new F1 IMO but confusing situation for sure.

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