If you were to choose between the two, which would you take?

Im thinking of taking Seismics for auto damage and board control. I get that you have to use an action to do so, but there are lots of action efficiency builds that would let you take advantage of the seismic (looking at you Ashoka -for example).

Flachettes are a nice way to pile the stress on and potentially cause a little damage.

It depends on the rest of the list, really. In the end I'd probably take neither and instead look to invest those 2 points elsewhere.

A lot of folks would say a 2 PT bid. Me? Blowing up rocks is just cool!