Current status of DifferentDatabaseScope implementation

my current project requires to connect to two different database (same schema, different database engine) using castle activerecord. The connection string for first database is same all the time, but the second one is changed dynamically based on user input. I decided that the best solution is to use DifferentDatabaseScope for second database.

From castle project documentation, it stated that DifferentDatabaseScope Still very experimental and it's not bullet proof for all situations. I want to know what are the situations that make DifferentDatabaseScope fa开发者_开发知识库iled or not behave as intended.