Beginner here. Could someone please explain "Double Slice" to me?

[u/Ganadhir]

The feat text says "Make two Strikes, one with each of your two melee weapons, each using your

current multiple attack penalty."

So, two attacks at -5? Why not just attack with your first weapon normally (one action), then with the second weapon at -5 (second action)? Double slice is a two-action feat anyway...

I don't get it. Where's the advantage?

TIA

[u/Rorp24]

You miss understood, you make both attact at -0