Yes,, they are. Will report back when the deed is done. An added bonus would be if lowering the CG and inch or two actually does improve handling feel (at least subjectively). Not being an SUV type at heart, I have always felt that, no matter how well sorted the CX-5 suspension may be, being up so high always has me feeling like I'm flailing around in corners. Of course going back and forth between it and the wife's MX-5 doesn't help that perception!
I agree, when driving the CX-5 on mountain roads. Sure the CX-5 is best handling compact crossover SUV in its class, but compared to my 2 sport sedans I can definitely feel the higher CG and stronger understeer when cornering at speed.
btw - I'm running progressive Eibach 350's (same as F-sport springs, Eibach is the supplier of these same springs painted blue) on my Lexus IS and I'm quite pleased overall. The only negative is on large bumps at speed, when I feel the stock shock setup allows for less control of rebound. Overall with this car the improved handling and appearance is partially offset by the negatives I described.