system other than the synchronized tremolo were for a time withdrawn, to return to the catalog as classic or retro models in the '90s. Later models are pivoted about two specially shaped studs rather than a row of six screws. This development sacrifices economical manufacture for decreased friction at the pivot point. Currently, the Fender two-point system is their standard and most popular design. Featuring stainless steel block saddles since its introduction in 1986, the Fender two-point system has been redesigned with new vintage-style bent sheet steel saddles as of 2008. The Fender two-point system is available with two types of "tremolo bars": traditional "screw-in" type with a plastic tip at the end and deluxe "pop-in" type without the plastic tip. Not to be confused with the similarly named Floyd Rose two-point locking tremolo, the two systems use the words two-point to describe entirely different concepts. Fender floating bridge The floating bridge featured on two Fender "tremolo arm" designs, both developed by Leo Fender subsequently to the original synchronized tremolo but overshadowed by it. Despite its not being the most popular bridge, there are benefits unique to guitars with this type of bridge (See 3rd bridge guitars). Floating tremolo The floating tremolo was designed by Fender for the Fender Jazzmaster, and first appeared with the release of the Jazzmaster in 1958. A larger, heavier and more complex vibrato mechanism than the synchronized tremolo, and promoted over it by Fender as their premium "tremolo arm" mechanism, it never achieved the same popularity, though if properly set up according to Fender's recommendations, it held tune as well as or better than the synchronized tremolo unit . A major cause of the floating tremolo's increasingly poor reputation since its introduction is the far-increased availability and popularity of lighter guitar strings, which do not produce enough tension in standard tuning to compensate for the low break-angle over the bridge and, in the Jaguar's case, the exceptionally short scale length of 24 inches. This places relatively little downwards force on the bridge, making it unreliable in returning to the correct position after tremolo operation. The main difference is that, while much of the mechanism of the synchronized tremolo including the springs is accessed by removing a rectangular plate in the back of the guitar body, and is mounted on the guitar body in a routed bay extending behind the pickups, the entire mechanism of the