Multiple Sets

Hey everyone,

So I've been working on my endgame gear and have been skimming through here for a while for what people are recommending for BiS or just a good set-up in general.

I've noticed that I haven't stumbled upon anyone mentioning using two 3 piece sets at once. Is there any reason for that?

I'm currently in the process of trying to get my 3rd piece of Sentry's (gloves from Hornet) and have 3 pieces of Strikers already. Is this a bad idea?