I hear differences, but it's inherently always a Stingray Sound that you are getting - as it should be I guess, because I don't really believe that people buy a Stingray (original or clone) to have it sound like a P Bass or a Ric or a TBird. It doesn't and it won't.
And I've never thought the Stingray to be variable in sound either - the fancy-pants coil stuff doesn't change that -, it has one very idiosyncratic sound which is great for funk and via the active electronics you can water that sound down to something that sounds different, yes, but loses all character in the process. But that one Stingray tone is iconic, never mind how I as a pick player and non-slapper can never reproduce it.