How long did it take you to realise that damping helps and is actually required for a DD wheel hehe. Niels Heusinkveld did a good video on tuning a DD wheel a few years ago and you can find it on his youtube channel. Maybe BirnenRubber could benefit. The interesting test is too add some Damping and get used to it for a few days as it will feel strange. Then go back to no Damping and you will wonder how on earth could I have ever driven without it!