A topic for discussion - How much can you clip Chaos Thrust before losing out on damage?

Raw potency, Chaos has a higher potency if you clip the debuff at 20 seconds (compared to Full Thrust).
The downside is that the DoT from Chaos is unaffected by the piercing damage from Disembowel.
So my question - at what point does clipping Chaos become better then doing a FT combo?

Eye-balling the math which I am pretty terrible at (going to leave Heavy Thrust out of this for now for simplicity). Also assume you will be clipping Disembowel (so account for piercing damage), values are in potency:
ID > Dis > CT(DoT)
= 198 + 242 + 220 + (300)
= 660 + DoT(300)

TT > VT > FT
= 165 + 220 + 363
= 748

Therefore the DoT from Chaos would have to do 88 potency (3 ticks, approximately 9 seconds) in order to be worth clipping rather then using FT.
So in other words - technically speaking, you would be better off clipping Chaos after those 3 ticks of DoT then you would if you were to do FT combo.

This does exclude Heavy & Life Surge (If Life Surge is up, then FT would definitely be more beneficial).

What do people think of this?