Phonostage Burn-in to keep unit sharp


There are phonostage burn-in products out there (KAB, Hagerman, Thor) that utilize your CD player. Most frequently these products are used to speed up the break-in process of your phonostage. But are they worthwhile to use every month or so to improve phonostage performance? I was told doing this is akin to driving your car on the freeway to blow out the carbon. I've yet to buy a burn-in unit. Do you think they are worthwhile?
richardmr
Yesterday I accidentally tuned my FM tuner to a Rap music station and it played through my amplifier for several minutes before I realized what was going on. This caused the transistors to become very traumatized, and I expect that several hours of nice quiet Mozart will be needed before the amplifier sounds good again.
Granite Audio makes a CD you can get from Music Direct. You just plug your CD player into your phono stage, but only track 33 for low output MC.
Just searched for and found this excellent topic with very useful information. Thanks so much to all contributors. Now where did I bury that silver cable and that 50 Cent cd ;-)