Reposting with minor updates, as it's been >3 weeks:
Hey Tonquin,
Poisoned Strike Ranks 1-3 only count as Crimsonite if both reaction spheres are empty. If the active reaction sphere is empty but the secondary (most recent) is full, Poisoned Strike will not trigger Crimsonite reaction.
Examples:
- Log in. Poisoned Strike fills empty secondary sphere. Cerulite (Stiffened Skin) triggers Orchidium.
- Orchidium active. Gildleaf (Fine Dust) clears Orchidium, leaving active reaction sphere empty and Gildleaf in secondary. Poisoned Strike does not trigger Crimsonite, so active stance does not become Pyrite
- Verdanite active. Poisoned strike does not break Verdanite stance
- Orchidium active, Cerulite (Stiffen Skin) in secondary. Poisoned Strike does not set secondary to Crimsonite.
As early as level 4 (Alch 3, Rogue 1), Elf, tested several times in different quests, wielding daggers but without Vistani Knife Training I. All three do damage, and in each instance an enemy was successfully hit with the attack (ruling out a possible-but-not-described WAI "on damage" vs "on attack" reaction trigger)