Its not common for me to get splits. I maybe get one a three game set. So staying out of trouble could be one thing to work on.
You're eqipment is not that old. I have a step son using a Monster Bruiser and averaging over 210 with it. If its never been touched up at a
Pro Shop that might help. More then likely the Bruiser needs to be polished.
What a lot of people have suggested takes more work and effort then buying a new ball, but they are right in that it will take that and good equipment selection to get over the 200 hump.
Erin