Just a heads up - I don't think the LSAC calculates a GPA from your international transcripts unless your college already uses a US grading system. They didn't for mine at least. But yes you can submit them whenever you'd like.
We should just live in a fucking cast system, when we have exams like these that are going to herd us into lower tier schools, where the graduate is going to make the same as the garbage man!
That's quite an elaborate system! I usually try to streamline by just marking the choices I am not sure about and attack the question a second time after the initial pass through. Like amedley, I try to knock out BR immediately after my first go.
... acting unethically toward an established system which seems to make the ... normal practice for a given system? That question goes into relativism ... to the individual within that system: minutes of their time.