PS. as far as the generalizations I think it's a waste of time. If you want a dog that can work, then research lines that have proven working ability and get a dog that can work from a breeder that actually works dogs and knows what they're talking about. Heidi knows how to train and title a dog so she can surely provide you with a dog that can work, if that is what you want. I find it makes more sense to study the lines and pedigrees of dogs I'm actually interested in than try to create generalizations about certain traits like conformation or working ability. Also these things all mean different things to different people anyway, and it's nothing personal. Some of my club members have dogs you couldn't pay me to own but guess what, they are SchH titled (or will be) themselves so they definitely "can work".
Liesje & pack
Coke (All-American 7/7/06) couch warmer extraordinaire
Nikon (GSD 9/7/08) U-CH SG SCHH1 KKL1 T1 FO PA TFE-II FDCh-S CL1-R UJJ U-CA HIT TT CGC
Indy (All-American 5/10/12) flyball star in training
Legend (GSD 10/22/13) the legacy continues...
Rainbow Bridge Kenya (GSD) U-CH FO OB1 CL1-R CL1-F RA HIT TDI TT CGC