If you can't set your mind to specializing in a certain weapon group, don't. I constantly have these "oh I would do well with this this no wait this is better oh wait no this" feelings. You'l decide on something, and instantly realize how bad of a decision it is.
If you're picky about gear like me, you should probably avoid most of the weapon specialization based gear. It tends to close out variety and fun. You probably want to get armor, helmets, and shields for each defense type. Also interesting weapons are good to go for. Shard Squad goes for shards and underrrated stuff, and they're good.
Just wanted to throw this out there.
That's why I use the Chaos set.
Also don't you mean if you're NOT picky? I mean, picky people would want to stick to a single weapon type, and their pickiness would "close out variety"