On THS, I will typically go to a STRONGER ball (IQ Tour Pearl or Marvel Pearl - those those two balls aren't exactly skid/snap) when I have to move in. I am already inside of most bowlers, but the track area at the exit point can be destroyed by anyone.
I know avabob doesn't like smoother reacting equipment, but for some reason, I feel urethane (Super Natural perhaps) could be a good choice. This would depend on the type of shot because urethane will need a defined dry area to be effective. If you are encountering carrydown, then urethane may not be as effective. But with really dry areas outside, I find urethane as a suitable option. If you don't want to go that far down, then perhaps one of the Tropical Breezes. Not sure you can go longer/snappier than the HyRoad Pearl so smoother may be your only option.