Study on Minium Route Advertisement Interval ..

Hi, I am studying the MRAI timer and its effects on BGP - how it affects the overall BGP convergence, route flap damping, persistent oscillations, etc. It is wrt this that i would like to know the default setting that most service providers use? Do they use the default value as provider by their vendor, or do they disable it, or do they explictly set it to a value lower than the default? Please feel free to unicast me your responses. I would summarize the results and send it out on the list, without the specifics of who uses what kind of timer values. Thanks in advance, Abhishek