My opinion is that neither of the breeds mentioned is helpful to a breed that more or less shares the same issues. How can you improve something when you are introducing dogs that bloat easily, that are overdone (OEM), have weak hearts (GD), poor drive? Of course there are exceptions to this rule, but even then those are plagued with recessives that down the line tend to surface... Correction, I am against inbreeding for conformational purposes, because when put in a performance setting, inbreeding serves a purpose. If you dont put your genetic material to a test, you never know what kind of recessives popped up when inbred. If you look at many performance breeding programs nowadays, you will notice that every practice has a place. Both inbreeding and outcrossing...Just gotta know how to use them.