That's excellent that you have a service manager willing to truly discuss the issue with you, instead of brushing it off and saying, "Oh, I've never heard of that," or "It's normal."
Also, I installed the updated brace in my car last night. So far, the effect is largely positive; I've yet to see how things fare in warmer temperatures, though.
I do have a small creaking issue, but I feel that I might have damaged my strut mounts by over-torquing the bolts, so I will be replacing them and I'll also be installing a fresh set of strut bearings. Since I preemptively ordered all the parts when I ordered the strut brace, I already have the parts on hand. I'm hoping that I can make some time to work on the car this weekend and hopefully get it done on Saturday.
Joined the dark side.