Ended up editing parts of it, (mainly discovering the DPS boost of Corrosive, something the +% of builder doesn't show) so now even though you lose 2k DPS you have Corrosive instead of Toxin and you're not dependant on 2 combo mods anymore! You can get those 2k DPS back (also +100 DPS lol) by using Primed Fury instead of Gladiator Might, but imo it isn't worth the -9k average hit.
If you wanna use 1 less forma, use [Crossing Snakes] stance.
Remember to check Apply Conditionals.
Base build was Viral Dual Kamas Prime, go check his Twitch channel.

- Putting Berserker instead of Primed Pressure Point gives +7k DPS, so it's worth the -2k average hit reduction.
- [Sacrificial Steel] is basically 2x True Steel. Which in turn makes it worth to put Sacrificial Pressure back instead of Melee Prowess.
- Replacing [Vicious Frost] with Weeping Wound not only gives +4k DPS but also makes status chance go over 100% (basically the reason to use elemental mods other than 90%/primed ones) with Toxin, which should be a good thing.
- With these rates, Blood Rush gives a good enough boost to replace Primed Fury (+7k DPS and +11k average hit)
- And at this point, Gladiator Might is better than Sacrifical/Primed Pressure, even including Umbra set effect, giving us +6k DPS and +3k average hit.

You CAN get a better DPS build by replacing [Sacrificial Steel] with [Primed Fury], (+4k DPS) but you also lose ~10k average hit, so I'm not sure if it's worth it.
If you wanna use 2 less formas, just use Crossing Snakes stance and Weeping Rounds at rank 4. Don't think having -14% status chance at over 100% makes that much of a difference.