I've said this many times before, but I'll say it again: Six-point trems are utterly useless to me, because they are completely unstable! Set them up to float, and a heavy shake of the bar shifts the whole bridge around on the screws. I don't care what sort of "vintage correctness" arguments you might come up with; the bridge performs poorly. I would much rather sacrifice the vintage correctness and "suffer" the tonal changes to have a bridge that is stable and usable than to remain stuck in 1954 with Leo's first designs.
If you want a vintage Strat, go buy a 1950s Fender. Otherwise, build a Warmoth that looks, feels and sounds like a Strat should (And mind you, there is a LOT of variation in the playability and tonality of various Strats, and no one can truly pin down just what defines the Strat.), but give it much needed modern appointments to improve upon the design. Unless you are trapped in a 1954 mentality, things like stable trems, locking tuners or SS frets are highly desirable. I don't understand why so many players shun them. The guitar world has progressed considerably since Leo's day, and yet some people look at it like that is a bad thing.