I have them both. DB starts a little later and is stronger to the pocket for me. Cobalt is a little squirrely on me sometimes. I use it for late in the set mostly. DB I have not really given a chance yet, I only got it 3 weeks ago..... and have only thrown maybe 2 games with it..... Just shooting too damn well with my 1-2 punch.... 2 Uranium Pearls. One dull and one sheen finished...... Now I added a XXXL (red) to those....
--------------------
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~~!