Straight up damage with [Seeking Fury] as a quality of life bump.

Don't feel the need for punch though? [Chilling Reload] is pretty snazzy. You get a bit more damage per shot, and your reloads are right in the sweet spot.

I see that others are running more fire rate/ reload. Frankly, while this does give you higher DPS numbers, I personally just don't Use the hek as a spray and pray shotgun. It's something that you're purposefully aiming at your targets. Seeking Fury/ [Chilling Reload], to me, offer better utility and in practice, offer more useful damage overall.