I love reading build journals. Great progression of the car. If I had the coin to, there is no doubt I would have taken a similar route with the E90.
Volks are hands down the best wheels ever. If there's any lesson I've learned from selling my last three sets of Volks...it's to NEVER sell Volks! I've regretted selling every single set, hahaha. I just need to start a collection.
Do you feel the upgrade from RS to RS Pro was a good step? I am debating right now if going with a remote canister damper is worth the extra pennies.
Best of luck with your continuous journey with your car. Keep us posted!
Oh, and I voted for you for COTM!!!