There is no way that changing the surface of any coverstock today will kill a ball. These balls are meant to be adjusted to the bowlers liking...
Do the adjustments in steps though, that way you know what the different levels do to the ball..
A suggestion on a good strong medium oil pearl to step in and take the place of the DB would be either the Supernova or the THS. I have the SN but not the THS. But I did throw one (well several) at the Ballreviews days and found it to be a little strong for my speed vs my rev rate, still very smooth though.
My Cobalt Pearl was very similar to my DB too....
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FAILURE IS FEEDBACK. AND FEEDBACK IS THE BREAKFAST OF CHAMPIONS THAT GOT DIGESTED!
Ten pin??? Where?? I throw a BUZZSAW there is NUTTIN left on the deck... Proud MEMBER of the FOS!!
Member of the FOS, if there happens to be a 9 pin standing just toss a saw and cut it down~~!