CC bonus from Glad set isn't doubled during heavies, only the bonus from [Galvanized Steel] is: (110% x 2) + 40% = +260%. With [Quassus Prime]'s base 35cc, each heavy at 5x combo is at 126 final cc. When priming for the [Quassus], it's most important to prime Viral. Sourcing external attack speed helps the feel and [Flow] of heavy spamming.

When running Melee Duplicates, aim for around 130% final cc—all yellow crits, with a decent chance at rerolling into orange crits.
Banes are important for overall damage. For higher levels, use Primed Pressure Point over Primed Fever Strike.

• Roar double-dips for raw dmg & dot dmg,
• Xata's Whispers double-dips on melee stealth multipliers
  • Also, the attractor bubble from Xata's or Scourge applies to the thrown daggers from Quassus.
    • This can work against us because of the Acolyte Malice, who can cast an attractor bubble on us

If running 12x, then run [Votive Onslaught]. [Slicing Feathers] has several QOL issues within stance combos that make it less comfortable to run. When Heavy Spamming, this choice doesn't matter.