Rays can tend to stick out in the mix due to the sizzling treble....I assume some high mids as well?
Sometimes, with certain tweeters and plectrums, it can make it quite clanky, which is great for some styles, but if you want a different tone, knock the treble back a little, cut the tweeter control a little, try using fingers or flats or both....
I've heard some very dark sounding Stingrays that underpin bands a little more like a P bass.
I would stick to a rig that allows you to have as much treble as you like, so you can cut it or just let it sizzle through.