Sudden leash-reactivity during puberty

Hi there, I also have a Weimaraner, a 3-year-old female, and while we didn’t have the exact same issues, we did struggle with her excitement in new environments, which made our leash walking challenging at times. What really helped us was the Walking on Sunshine course from the Gefährtenschmiede. It’s an online course that focuses on building the bond with your dog and working without distractions from external stimuli. This approach brought a lot of calmness and consistency to our leash walking, even in more exciting or unfamiliar places. I’d highly recommend it, as it was the only method that truly helped us without adding too many distractions. I also want to add that in my experience, leash walking isn’t just about training—it’s more of a constant state of leadership. Your Weimaraner may need clearer guidance from you, as he might feel the need to handle situations on his own if he’s unsure about your direction. Establishing stronger leadership can help him feel more secure and less reactive. If you’d like, feel free to join the Weimaraner group. You can also message me privately if you have any further questions about the breed or training in general. Good luck with your Weim! I’m sure you’ll find something that works for you both.

It could be simply puberty. But if it get's to extreme levels you should ask a professional for help. My young male was also over ecstatic but it would not matter if the other was male or female. I had luck

Could you probably provide a video of such a situation? Ideally filmed by someone other than yourself? It would really help to see the whole thing play out, the dynamic, the timing etc, to give proper advice.

Also, what exactly do you mean by "highly trained" and what activities, other than training, do you engage in with your dog?