Thats not necessary what you see on his rag is not just oil. Because hes using a scotch brite pad its also the cover stock on that rag. There is no need to do what he does to properly clean your ball. All I use is Black Magic Rejuvinator and a rag. If you clean your ball directly after use the oil for the most part will be just on the coverstock.
Now lets say you let your ball sit after bowling and paying it no attention as far as cleaning it for a couple trips to the alley. Well eventually the ball will "die" as most call it but with a simple hot water bath treatment you can restore the hook back into your ball with out having to pay lots of money to have a pro shop to do it for you. You can find that on
www.morichbowling.com under the cleaning section.
Last thing is about the pad that he was using is used to bring the grit down on a ball. Well that would not do anyone any good if:
1) the grit it was putting on the ball was not what you want
2) You have a pearl ball that doesn't need sanding
3) the ball is polished and no need for sanding because you will knock the polish off and have to redo that everytime.
Best thing is get a good cleaner like the Black Magic Rejuvinator and clean your equipment regularly right after bowling and not to worry. If you notice a ball not reacting consistantly or just not hooking give it the hot water bath and trust me it will come back to life.
Good luck and hope this helps!
NicholasE