Good post mate -
Someone said if its in them ,then waiting will do them no harm but the opposite is true as well.You just have to know your stock and know how to nuture the younster.Starting a pup at any later than 2 years old would you still treat it with care or regard it as a adult and expect the same from it as others of the same age ,but working steady .?.There are no hard and fast rules in dog work and the day we all agree will be a sad day .
no matter how old the dog is when it starts work you still have to enter it correctly and not rush in .... that said if they are fully matu