
Welcome here!

Orion would be a great choice because of the weight and ergonomics requirements, but I would advice to get one (or mod one, it's pretty easy) with a Filter setup.
Bass and treble setup is great, but I find it much more useful in a " subtle" situation. Same for a multiple Filter setup, for raw metal a single Filter is more than adequate.
My Series I is undergoing surgery so I'm using my Elan 5 in my " subtle" band now, in that setting I can hear the difference in pickup selection and Filter/Q settings much better.
In the Metal setting that distinction mostly gets lost in the hard driven tube amp and wall of guitar sound, so I would say the Signature setup is also more useful in a subtle situation.
Though if you have enough budget, there's no reason to not go for it.

They can do aggressive very well, depending on what you use for effects/amps. In this clip I use an extremely saturated Ampeg model from Line6: