The logical evolution in classically styled vibrato..
The improved design and engineering quality of the Diamond Deluxe over similar products is impressive… A beautifully smooth bearing system which eliminates much of the tuning instability often encountered with this style makes it a joy to use, whether inducing mild ‘50s vibrato, or more tonal obvious variation, and improved string retention is a bonus when re-stringing…
It’s not a modern two-point floating unit designed for “Dive bombing” or other aggressive techniques, and as such requires a fair bit of work if you want to “Go wild”
In contrast to similarly styled more expensive systems, the operation is silky smooth, and in combination with the less bulky, flawlessly finished casting, it’s a perfect way to convert your guitar from a fixed tailpiece to a reliable and stylish “Classic” long vibrato, or to upgrade from a pre-existing, but more primitively designed unit, for improved operation, tuning stability and versatility..
Installation on a guitar fitted with a stop-tail system does dictate drilling small holes for the mounting screws, but they are a very small price to pay considering the improved versatility and elegant styling…
As with any invasive upgrade or conversion, If you are not 100% confident in your ability to properly align and fit new parts, I would strongly advise having it fitted by a competent guitar tech or luthier… But in my opinion, it is well worth the relatively small cost involved..