Yes, on a CoMo Speedster. On what we call Golf Course Road, but is really 240th St. SE, off Bostian Rd., north of Woodinville. I had two tires blow on that descent on our Speedster before I got my tire/rim/rim strip combination sorted, luckily not during the crux part, but a few seconds later when it was safe. Juneau is not so bad, but it's good to get descending chops to be habits. I've only taken that one from the south. I let it build pretty good on Seward Park, maybe braking hard a couple times, then brake hard before the right hander, then mostly drag them down Juneau, braking harder at the bottom.