Using wet speeds "to cover yourself" on a dry or almost bone-dry runway is shooting yourself in the foot somewhat in the event of an engine failure.
Dry performance requires you to be at V2 at the 35ft screen height at the end of the TODA.
Wet performance only requires you to make a 15ft screen height at a speed that will allow you to each V2 by the time you reach 35ft some point in the future.
Our Ops Manual allows the PIC to elect to use dry speeds and limits on a damp grooved runway on his or her assessment of the conditions.