When it comes to the mod loadout it is important to remember that a weapon should suit your playstyle.

I chose impact as my kuva element to include Hemorrhage in the build. It's worth having as it adds additional slash damage not included in the Overframe calc; magnetic is on my other [Kuva Nukor].

Rank 10 Primed Pistol Ammo Mutation is not mandatory. Some ammo mutation is fine, around rank 4 or so, but you can also use Eject Magazine or Ruinous Extension.

Math Time (WARNING! Leave Now While You Still Can)

There have been a lot of people discussing unranked status mods to increase the odds of getting slash procs through high slash damage, Hunter Munition, Internal Bleeding and/or Hemorrhage. If you rely on slash to do damage, then feel free to reduce the element mods to change the weighted damage values.
What does that mean? On a status hit: Proc Type Chance = Type Damage / Total Damage

In this build, there is 150% status chance with 28.9 Impact damage and 340.5 total damage on a single beam or 1.0 multishot (as it is a beam weapon and does not have a projectile). That means there's am 8.49% chance to apply an impact at one chance to apply status while 2 status procs, given the 150% can get jank.

When a weapon achieves a status chance higher than 100%, each hit may apply additional status effects. The type of each proc is independently drawn, so it is possible to apply the same status several times in one hit.

The math does not touch damage per hit, viral damage bonus, armour (damage reduction, corrosive or heat), element damage bonus/reduction; just Hemorrhage's slash.
I prefer to go with max dual mods as it increases damage and status chance. You do you.

Sources:
Status Effects
Slash Damage

Happy Hunting.