Oh Wow! I've been wanting this as an official feature for a long time now, and to find it snuck in under my nose is just simply amazing! The heavily-loaded configurations are so much easier to handle now - smoother on acceleration and braking, without all the suspension creaking as some of the weight shifts behind the bogie. More difficult in the turns, but that's kind of the trade-off for moving stacks of steel pipes. Thanks for bringing this feature to my attention! I always forget to check the tuning menu.