User blog comment:Seishie/Ranking and trading with alt accounts/@comment-24719065-20140804053614/@comment-197.247.110.148-20140804130126

Wiping/formatting doesn't affect your data, and creating a new user profile makes VC buggy. Tested both several times before, so I'm pretty sure about that.

Method a is the most recommended. d is possible on rooted devices but may conflict with other apps.