Apologies for having to write in English! I was wondering why there was not a way to hide the extension bar cables through the stacks rather than down the outside. It would be really good to integrate this with the Profile Design product: https://profile-design.com/collections/aerobar-accesseries/products/aeroport-di2-rs910-adapter
Do you think you could drill in the centre of the stacks without losing strength. It would seem possible to me as there are several holes here anyway?