After having the third original Warwick machine head break on my German 2006 Corvette F.N.A. Jazzman, I decided to look for a non-Warwick replacement. Hipshot tuners were a bit too pricey for my liking, so I opted for these Gotoh tuners. My first impression was that these are a more solid product than the originals, both aesthetically and mechanically. The turning feels smoother, and they do weigh 10 g more per piece (69 g versus Warwick's 59 g), which is negligible but certainly adds to the overall positive impression. The Gotoh GB707s are a perfect fit for the existing Warwick headstock holes, although I did keep the original screws on the backside, which have a slightly finer thread than the Gotoh screws, because I didn’t want to damage the existing threads in the wood. Finally, the Gotohs are a bit cheaper than the Warwick machine heads, making this purchase a no-brainer. I definitely recommend replacing your original faulty Warwick machine heads with Gotoh GB707s.