No personal experience with the "Burn-in-generator". I do not think that I would use one anyway. You should Know within two weeks if you like the cable or not. What you get with more time is a refinement of the basic cable qualities. In other words, if the cable sounds good and makes a positive contribution to your system, it will only get better. How much better will vary from system to system and much of the perceived improvement will be very personal to the listener.
I would prefer to break in cables with a break in cd or use the repeat function on your cd player.
I would prefer to break in cables with a break in cd or use the repeat function on your cd player.