I really don't understand the response you're getting for this. The SSL-5 was developed for David Gilmour, a guy who is specifically KNOWN for his singing, sustaining bridge tones. (Before the SSL-5 was made in the late 70s, he used a Dimarzio FS-1 pickup in the bridge which had the same idea) So what if you lose a bit of the open character, what you get for it is a much smoother, warmer and more driven sound. That's the point. You will still have 4 positions with perfect vintage clarity and cluck.
Sounds pretty 'vintage' to my ear (theres one in the bridge of this guitar stock)
But yeah, if you prefer fat singing leads to 'cutting jangly leads' (both are valid, you aren't wrong for liking one over the other), the SSL-5 is going to do a lot more for you than a vintage strat pickup. Though really.. who are we talking vintage? The SSL-5 was developed in the late 70s, it's plenty vintage too..