The God Machine chronicle rules update introduces the idea of conditions in place of various rules, one of which is flaws.
The leading text in that chapter explains how to replace flaws with conditions, stating that the ST may choose to allow the characters to start with a persistent condition:
Some Conditions are marked as Persistent. These Conditions are tied inexorably to the character (replacing the Flaws in the World of Darkness Rulebook). Persistent Conditions may offer one Beat per game session when they complicate the character’s life. With Storyteller permission, players may take Persistent Conditions for their characters at character creation. Persistent Conditions may be resolved permanently only with a specific and impressive effort, along with Storyteller discretion.
The issue is that no distinction is made between the good, the bad, and the ugly.
Some conditions are only negative (The good - maps back to flaws exactly) , some are only positive (The bad - clearly not flaws, taken as merits perhaps but at what cost?) And some are mixed (The ugly - have to be split into flaws and merits...what cost and what do you keep when you lift the flaw?).
In my case my ST is not using all the new rules, and is not using conditions or beats. I want to reconcile the new Conditions with the old system as I'd like to be able to make my character 'obsessed' with something. A condition satisfies that exactly, but has both positive (9-again on roles relating to my obsession) and negative (no 10-again rule on anything else).
In general how should I handle this?