have a couple of mistakes. but if your mistakes are too regular, you need more work in the house first. you can (and should) also build in distractions in the home, like trying to do this when your dogs all have a bone or a chew. my test is doing it when the post lady’s van pulls up… not 100% there by any means, even in the house. before you move outside, you need a rock solid recall in the house first. i’d also build in a sit-stay-release response, as you don’t want your dog running off the moment they have the reward. a sit-stay-release response is easy to teach 