I notice there is a surprising lack of information regarding 2 point synchronized tremolos. A quick google search on the groups or websites revealed many unanswered threads asking for information on these types of trems. Now 2 point tremolo were used because the 2 point meant less friction therefore improved tuning stability. Most of the newer trem units including locking floyd rose uses these 2 point system for this reason. Even the main American Standard and Deluxe used 2 point tremolo as well, except for vintage reissue which uses 6 hole units for that vintage vibe.

There are several types of non locking 2 hole tremolos, there is units produced by Mighty mite which is all over ebay by various sellers. They make several version and claims to be licensed by Wilkinson. These units have somewhat of a low quality because the studs were made of some kind of soft non-magnetic metal that scratches easily. The block is made of zinc and the only steel part is the saddle. I am not sure what the baseplate is made of, but the version I am talking about is sold by various ebay seller and it looks like a stock American Standard tremolo, with push in arms.

Then we have the stock American Standard unit. These units are actually quite sturdy despite its lack of features. The parts are all hardened steel, including the baseplate, stud, block, saddle, everything. The stud is made of hardened steel because I have tried to remove the studs by gripping them with a plier and pulling it off the body. I slipped a few times with the plier and there was not a single scratch on the post. In case anyone asks, it is vital that the post and baseplate be made from a hard material because harder material means less friction, therefore less wear and better tuning stability. The softer material on Mighty Mite bridges could mean more friction and the whole thing probably could not stand up to abuse too well. The only con with American Standard bridge is that they are not that easy to find, and the price is very close to a Gotoh VS-100N unit. Also some seller may sell the bridge without the stud insert (but will include the stud) so if you are putting this on a brand new Warmoth body, you need to buy the stud insert separately as well, and they are very difficult to find. Few ebay sellers does sell them, and some parts dealer sells it as well, but fewer and fewer people are selling them for some reason.

Finally, we have the Gotoh/Wilkinson VS100 series bridge. There are several breeds of VS100 bridge, some ends with N which is just a normal bridge, then there is the one that ends with C which stands for Convertable. The unique feature of the convertable is that they have a mechnism that only allows tremolo movement when the whammy bar is used, therefore increasing tuning stability when string bending. Also another feature of the convertable is the ability to lock the strings like a floyd rose, that is supposed to allow for reverse tuning for those that have non-locking tuner, but locking tuner isn't too expensive so it should be moot. This feature also makes string change difficult but the mechnism can be removed so strings can be installed normally. Unfortunately, the convertable isn't sold in the USA anymore and no one is allowed to sell it to Americans either. Apprantly there was some kind of legal thing about who made what therefore the convertable was taken off the market.

However the key feature of all VS100 series trem unit is adjustable whammy bar tension, adjustable string spread, and everything can be locked down to insure stability, that includes saddle height, intonation, bridge height. The VS-100N is readily available from several parts dealer, so finding support or parts for this unit should not be that hard. I do not know what the block is made of (I ordered one and is waiting on it as of this writing) but I gather it's steel because I examined a Carvin wilkinson unit (which is almost the same as gotoh) and the block feels like steel, therefore there is no reason to think that the gotoh unit isn't steel either. The unit cost a little more than standard American 2 point tremolo but it is a lot easier to find, and according to many internet boards it is pretty much the best non locking unit available. Most popular combination is the VS100N and graphite nut and locking tuner and it's said it will stay in tune even with heavy tremolo use. This is a great unit for those who doesn't want to use floyds. This unit can retrofit any American standard routings so if you want to change the trem unit of your American strat you can do it without modifying the guitar.