My mim Strat is a floater with 3 springs cause I love doing Jeff Beck imatations.But what do I know I'm a bass player...I own two guitars the other one is CV 50's Telecaster with Twang King pups in it and boy does it Twang lol
I'm enjoying all of the responses so far. So, further question: For all of you who keep the tremolo floating (and even to any of you that keep it decked, if you feel like it still makes a big difference), how many of you feel like it's important to have a fat solid steel sustain block under the tremolo plate? I have a Squier Classic Vibe 50's Strat and it came with the zinc sustain block that seems to be cast in a way that saves on as much material as possible. I've heard that it makes a big improvement to get it fitted with the thick solid steel sustain block, and I've heard guys say they don't hear a difference at all. Thoughts?
I dunno, I'm not entirely convinced "big blocks" do much. I replaced my NFT Floyd's original factory block (skinny, chrome-plated brass) with a fat brass block; I noticed no tonal change, and it just made the trem have less range of motion (fatter blocks hit the cavity route sooner than thinner blocks, can't dive as far.) I even went so far as to record before-and-after audio clips just to satisfy my curiosity, and I couldn't tell them apart without looking at the file name (well, and slightly different playing, but the tone was the same.)
I don't buy into a lot of the long-held ideas about things like tone wood, but it always seemed reasonable to me that the bridge would make a difference since that's what the strings are always touching. And in fact different bridges do sound different, but I don't know that it's actually the block that has much influence in that. The stereotypical Fender bite and twang seems more prominent to me on vintage-style trems with stamped and bent saddles, rather than more modern ones with cast/machined saddles...even when both trems otherwise have the same block material. I have to wonder if it's more about the saddles themselves than anything else, especially considering they're the only constant contact point on a guitar regardless of what you're playing.
With all that said, I would still swap out a zinc block for a steel or brass one in most cases. There are tons of different zinc alloys, all with very different properties, and not all of those are cheap pot metal. The zinc block on some Gotoh trems is a good example of a good zinc/Zamak alloy (still a bit soft as far as metals go, but not really any worse than aluminum or even some brass. Many machining lathes have Zamak gears, if that tells you anything about the durability.) My reasoning isn't tonal though, it's simply the design of the trem itself: tapped zinc holes are very easy to strip out and screw-in trem arms will eventually strip it. Often this also cracks the block itself, especially the thin ones, which is something I've personally experienced on multiple Squiers. A steel or brass block can certainly still strip out, but not as easily as zinc and rarely do they crack. The reason I say that "it depends" is because there are some trems (like the Gotoh VS-100N and 510 series) where the trem arm is held in a completely separate steel sleeve and isn't even inside the block at all (much like a Floyd); in designs like this a zinc block isn't at risk of cracking and unless it's really awful and crumbly (I've seen it), shouldn't ever have any problems.
There's some other things to keep in mind though: there are just as many cheaper, softer steel and brass alloys as their are zinc. Trem blocks aren't hardened steel either. Cheap brass tends to have a higher lead content because that makes it much easier to machine, and a lot cheaper since there's less copper. A lot of the budget brass blocks I've seen (I'm talking GFS-level) are really soft, and are probably still fairly prone to stripping out, so don't let the lure of shiny brass fool you too much. Same goes for steel: there are lots of "mild steels" (ie steel that can't be heat-treated and hardened) that will also strip fairly easily, but it'll still take longer than brass or zinc. From a purely functional standpoint I'd go for steel, even over a nicer brass block like KGC, just to give myself a little extra life before those threads start getting a little mooshed. Then again I love Gotoh's trem designs with the separate arm holder, so I'd honestly be more inclined to swap out one of those bridges and not have to worry about it for years. Steel block would definitely be my next choice though!
Very thorough and educational! Thank you! I love detailed information like this!
I adjust mine so that there's just a little wiggle room downward as others have said.I wanted to try some Jeff Beck styled licks so I bought the complete bridge assembly from Callaham for a partscaster.He achieves a flutter sound to notes by quickly releasing the tension from the bar,almost slipping off of it so it abruptly returns to position.The Callaham stuff is really nice but for me the biggest improvement is that there is no slack between the bar and the block.On my Fender trems there is a little slop where the bar itself will move before it moves the entire block making that note flutter trick less pronounced.I set it up just like in the video and it's a lot of fun to play with but just not practical for everything for me.Its easily reversed if you decide you don't like it also so there's nothing to lose [emoji4]