Just got an upgrade Brass Tremolo Block for the EDGE Pro trem in my recent Ibby Prestige today.
I always get mine from
Guitarupgrades on ebay and have them on all my guitars. The blocks are awesome quality and craftsmanship and way more affordable than e.g. the overpriced KGC blocks......
The improvement in tone and sustain over the commonly used pot metal blocks is imminent. Mass=sustain and the brass blocks are not only slightly bigger in size but also at least 2 1/2 times the weight.
When played dry, the tone is ways bigger, broader spektrum and way more full-bodied. I already mentioned the improvement in sustain and you can really feel how the guitar resonates. Just let it hang on the strap, pick the b-string and put your middle and index fingers to the lower body where the input jack is....now this construction of wood and metal has really come to life.
When played through an amp, all of the above is "amplified"....fret a note, let it ring and sustain and it dips into harmonic overtones totally effortless.....
This is a 30$ improvement that I can highly recommend to all you double locking trem players!!!!
Some pics: