Thanks for the heads up ^, but Jsolo came through immediately.
On the subject, I'm looking forward to getting the spring installed to see exactly what difference, if any, exists IMO. That said, I've been studying the clutch feel closely on this car (2012, stock Nismo, 11,000 miles, stock fluid), and am really wondering if the issue many are having isn't related, at least in part, but the "fly by wire" throttle we have. I find the response "mushy", especially from a stop, but I don't find the clutch engagement all that unusual. Engages near the top of the throw, friction feel is not great, but overall very linear. I've driven performance manual cars for years (two Z06's, a GTS Viper and a FFR Cobra), so I think I have a decent grasp on proper feel and operation.
Just my .02 thought. In my perfect 370Z world, I'd tighten both the clutch and throttle response up. I'm sure, based on what I'm hearing about Uprev, I could have the throttle response made a bit more crisp at lower levels. Used HPTuners on the LS for that too...