oldnog my last 2 dogs that i have got working took several months,almost gave up with one of them knew she would work but took so long.that black and tan dog i have took a whole season,showed him one stop end and he flew but would not understand about finding until i had one in a pipe.there isnt many dogs that do it straight off mate so dont worry.on the other hand mate had dogs for a season that never do make the grade so just wait and see.