I had a black P-Bass that I put a red tort pickguard on it and it looked really cool. When I got my black Stingray I wanted to do the same. The stock black with white around the edges just did not do it for me.
I got the red one and put it on it just looked weird. Something about the teardrop shape. I think the teardrop shape makes the bass look very modern and tort pickguards look very vintage so the two kind of clash.
I returned the pickguard and got one of their plain black with no border and it looks swank. I think the teardrop shape in general kind of looks weird, but cool in a way too? When I was younger I think it kept me away from owning one of these sooner.