HELP. Sway Bar Q's...

[Zarchery]

I've been reading threads on the forums regarding sway bars. Not really finding the answer to the question i'm wondering. I have a 2011 370 with koni yellows and swift springs. In my experience this upgrade was a MASSIVE change from stock. I've tweaked my dampening and got it dialed in to my liking (I'm not riding them all the way soft like I've seen a lot of people posting in the threads.) I'm not tracking the car, only spirited driving in the ozarks. Was wondering if upgrading sway bars is a noticeable difference in the car? A night and day handling difference. The car is already so well balanced from the factory, and i haven't yet made it worse. Just looking for some opinions from experience here. Was leaning towards stillen SIMPLY because i like the brand.

Thanks in advance