Been testing Sapping Ambition, one of the highest tier enhancements of the Vile Chemist tree.
The ability should give 10 plus alchemist level temporary SP, with a 10% chance, when striking using a Vile Chemist weapon setup in orichidium reaction. It doesn't do that. It doesn't trigger at range with an orb, or nothing, in the off-hand. It doesn't work with a throwing dagger or dart.

It *does* work with melee daggers, but when it procs it only gives 10 temporary SP (not 10+CL).