Also keep in mind the flip-side of this is that if you leave before 6 months, some hiring managers will see it that you "failed" your probation and the previous

Also keep in mind the flip-side of this is that if you leave before 6 months, some hiring managers will see it that you "failed" your probation and the previous employer took the easy way out to let you go for sub-par performance. Obviously it depends on the politics of a situation, but be wary of those questions that might arise, and still leave on good terms if the new place wants to confirm you weren't let go.