Göldo Roller String Tree CH

Ever since I got my Strat copy in 1984, I've been thinking that it's the brass nut that was fitted on it that made it chronically go out of tune every time I used the whammy bar. So I basically didn't, until recently, when there was a tune that required me to do so. Somewhere on the internet I stumbled across the tip to switch to a pair of these, and so I did and lo and behold... My. Guitar. Doesn't. Go. Out. Of. Tune. Any. More!!!!
No matter how hard I try abusing the whammy bar ? the strings happily spring back to where they were supposed to be, thanks entirely to these little fellas. And to think that I used to be seriously tempted to invest in a Floyd Rose system for more than 100 times this money?!
This flies in the face of conventional wisdom when it comes to guitar building theory ? but it's nevertheless true. I've just learned something completely new. It's the standard retainers that mess with your tuning. Get a pair of these and the problem's solved.