ABM 5050-M Vintage Tremolo Mexico

I've bought it to improve my Yamaha Pacifica, which already had pretty decent bridge, but without a full size block.

Pros:
-sturdiness, finish, precision
-all points of friction are rounded , their number is reduced, the friction is minimized which gives pro tuning stability
-the resistance of the trem arm rotation may be set with an appropriate screw. The bridge has built-in teflon socket which assures good fit and prevents wear
-all additional elements like the arm, the claw, 5 tension strings are provided
-small elements like screws and little springs are provided with spares - no worry if you lost one or two of them

Cons:
-The saddles are a bit higher than my original ones, due to which I needed to file one saddle down to a lower height (for the high e) - the filing is underneath the saddle, it is invisible, neither the looks nor the strength of the element were compromised
-For those who are annoyed by the saddle screws sticking out and hurting them - they do stick out here just like in classic bridges
-the small springs pushing the saddles are too weak - I had to replace them

Overall I am happy with the purchase, combined this bridge with graphtech string trees and my guitar stays in tune in both bends and tremolo action. I can do flutters, dive bombs ect with reliable stability. Small adjustements like filing of one saddle or changing the little springs were necessary to adapt the bridge to my guitar.

Brilliant. Probably the best trem bridge out there. Double the price of the Fender equivalent, but totally worth it. The block is as chunky as can be, which feels very reassuring. The saddles are optimised -- actually pretty much the whole thing is optimised exactly as they advertise on their website. All those little modifications add up and make a lovely quality product. A lot of money for a bridge, but definitely no regrets. One word of caution: being a big chunk of quality metal, it does make your guitar a bit heavier than you think. Bonus: there is an extended fitting and setup guide on the ABM website.

I've installed this on my classic vibe 70's strst after ordering a similar product that didn't fit and can I just say, wow. What an incredible piece of kit in comparison to the stock trem. You don't need any spring for the arm as the tension is adjustable, the overall fit and finish of the trem is beautiful and it is built like a tank. It's safe to say that I am delighted with this product and cannot recommend it enough