The weight block in the Domination and the two overseas Dominations you mention are BOTH asymmetric RAD+ cores, they have nothing in common with the T-Road pearl other than the coverstock.
In the right hands an asymmetric ball can be a lot more versatile than just a symmetric one, and I'm merely talking about layouts.
Astroman - Was the reaction close between your WD and T-Road Pearl on a house shot? If so, the significant differences between the two balls were probably hardly apparent with your style.
Domination's have a core that is lower RG than the HyRoad/T-road series. RAD+ core should start rolling/reving earlier and be smoother (relatively speaking) than the symmetric core in the T-Road cores...
YMMV