I installed this nut on my American Special strat, and I had to sand and file away the nib on the underside of the nut as the nutslot was curved as well. A bit of sanding on the side of the nut was required, after which I had a perfectly spaced nut. My strat (floating trem setup) stays in tune really well with this nut - better than the original nut that was in there. As far as sound goes I cannot say there is much of a difference between this nut and the previous one, but it does what is promised in terms of tuning stability, so it is certainly worth its cost. Good value!