
As many people have said all dogs have faults. Some faults can be hidden with good handling, some faults can be made worse with bad handling, some cracking top dogs could look like a sack of potatoes with ultra bad handling!
With referance to straight in stifle, That could be the dogs only fault, but it could still move well, and possibly still work!
A little tip I'm sure you have already learnt, unless your putting your hands on a dog don't judge it, you wouldn't believe how many faults can be hid by grooming etc! Think about poodles...a poodle in a "pants" trim (don't know what it's called) could have a straight stiffle, with grooming could look over angulated!!!! (just an example of extreams!!!! :D )
Also don't forget past champions may be afew generations gone and back then they where the best! The breed has just improved (which is what everyone hopes for!!!!)
As for photo's I have a photo on the cover of the breed club newsletter and the dog looks crap (went BIS at last open breed show and is a Sh.Ch.) Looked at another photo of him on the net and he looks wonderful (he is wonderful)
Another point is photo's can work both ways. You can look at a photo and go "wow" and then you hear a little tip off that the photo has been digitally enhanced...It does happen, saw in a year book once, unfortantly someone wasn't the greatest on the computer... LOL
If you want to judge I say you shoudl start now. GO on judging seminars of the breeds you are intrested in, if you don't pass then you know your not ready to judge yet!!!!! Also talk to people, if you ahve any friends who judge, and see about getting an appointment at a companion dog show. We do this for many people who are intrested in judging when we have already got appointments!