As acknowledged--the web info provided is from the Australian website, and was only for reference, to illustrate that the Pedders springs (off-topic, really) appear to be interchangeable between VE & VF...I'm not shillin' for Pedders. I don't know if any of the other spring suppliers (Tein, H&R, Eibach, Lovells, etc)....have anything listed for the VF chassis or SS specifically or if any of their VE springs also are listed as suitable for VF, as Pedders has done.
MM - your statement about spring rates & weight distribution is a bit misleading, at best, as the weight (total & F/R %) is not THAT radically changed, when you consider how widely driver & passenger weight varies, and what someone may put in the trunk....and if H&R or any other spring supplier really cared about offering a product for a new "sporting" vehicle like the SS, they wouldn't wait for some take-off springs or the urging of an interested party/owner inquiry, they would get them from GM and test them and see whether they had the product already on the shelf or get the process started to put a "correct" spring in production. At worst, well, I'm just not buying what has been stated....and I'll leave it at that.
Unfortunately, the reality of this car is that suppliers of anything specific to the vehicle have to decide whether it's worth it to even produce something when production is likely to be so low that the business case is very difficult to justify. When one supplier (H&R) looks at what percentage of the spring market they may realize out of the process, it will be interesting to see whether they do anything more than just qualify their existing G8 spring kit.