I would say keep the Dimension at what is it, and keep your T-Road Pearl at what it is. Those two balls are pretty far apart from each other in terms of reaction.
For another ball, I personally would say get something in between the Dimension and T-Road Pearl. Perhaps a Virtual Energy would fill that void - a pearl that will handle more oil than the T-Road Pearl and that will hook later down the lane than the Dimension.
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Proud Supporter of Rob Stone
Obviously, you aren't a golfer.
Some stayed in the foothills, some washed logs like teeth.