Others have PM'ed me about the ride, handling characteristics since performing this mod. I only took delivery last night and haven't had time to drive her in the canyons and get a feel for the ride however I'll share the following initial observations for now:
* Re: noise, rattles, etc: No problems at all. BMW vault-like quality is preserved.
* Re: rubbing: Using the same practices approaching curbs as my S I haven't rubbed/scraped the front (Don't intend to either because the car sit higher than my S2K)
*** I'll still continue to drive her gently until 1,250 miles. I will also perform an alignment after 3 weeks to give the suspension/springs an opportunity to settle. Then I'll come back and give y'all better driving impressions.
Thanks everyone for your replies.