100% a yes for me parents have to be working id never have a dog /bitch tat was not from 100% proven parents wud want to see sire and dam work too ive been lucky enough ive 3 dogs in my yard two 4 mth old pups and a 17 mth old tat ive got from a good mate out of his own breeding and ive seen the parents involved work very hard they are well provent the 17 mth old already sweeping foxes and bunnies a cracker pups coming on really well coming from working parents does not always mean u get a good worker but its a very gud start and a must 4 me atb