Can't say as I have - but then I wasn't on a pure 4bar jobbie pre 575. I actually think the spv on my minute is causing less brakedive than my old setup (Ventana/White Bros) so I'm staying more level anyhoo.
Mind you, I've firmly of the opinion that you can't catagorise suspension as "4-bar" or "McPherson" and then expect similar designs to behave the same way. There are far too many other variables. What you need to do is ride what you're interested in and like/dislike it...
Or do what I did, buying my 575 untested on Yeti's rep and reccommendation, and be prepared to get used to a slightly different style. I should point out that my 575 runs rings around anything else I've ridden.
idiot