[QUOTE=Woogie Man;1848844]Thanks for the link, bchgirl (light reading...right

). Yes, it was my mistake confusing mitral valve disease with microvascular dysplasia (both abbreviated MVD).
You pretty much have to read every book and article you can on your breed,and the internet has a ton of information. Join a club and go to shows. Get to know the exhibitors, especially the older ones who've been at it a few decades. They know so much... If you have an active YTCA chapter near you, find a sponsor...I should follow my own advice a little better...Do an internet search on the names on your pedigrees, see if you can get some background. Again, find good show people and have them review you pedigrees. They'll quickly fill you in on who is in there...